<SUBMISSION>
<ACCESSION-NUMBER>0000950153-06-000803
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20060323
<ITEMS>2.02
<ITEMS>4.02
<ITEMS>7.01
<ITEMS>9.01
<FILING-DATE>20060327
<DATE-OF-FILING-DATE-CHANGE>20060327
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CSK AUTO CORP
<CIK>0001051848
<ASSIGNED-SIC>5531
<IRS-NUMBER>860765798
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0131
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-13927
<FILM-NUMBER>06711275
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>645 E MISSOURI AVENUE
<CITY>PHOENIX
<STATE>AZ
<ZIP>85012
<PHONE>6022659200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>645 E MISSOURI AVENUE
<CITY>PHOENIX
<STATE>AZ
<ZIP>85012
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>p72073e8vk.htm
<DESCRIPTION>8-K
<TEXT>
<HTML>
<HEAD>
<TITLE>e8vk</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>






<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM 8-K</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>CURRENT REPORT PURSUANT<BR>
TO SECTION 13 OR 15 (d)&nbsp;OF THE<BR>
SECURITIES EXCHANGE ACT OF 1934</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Date of report (Date of earliest event reported): March&nbsp;23, 2006</B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>CSK AUTO CORPORATION</B>
</DIV>

<DIV align="center" style="font-size: 10pt"><B>(Exact name of registrant as specified in its charter)</B></DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
</TR>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>001-13927</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>86-0765798</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or Other Jurisdiction of
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Commission File Number)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">Incorporation)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Identification No.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>645 E. Missouri Ave. Suite&nbsp;400, Phoenix, Arizona</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>85012</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(Address of Principal Executive Offices)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Zip Code)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Registrant&#146;s Telephone Number, Including Area Code: (602)&nbsp;265-9200</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing
obligation of the registrant under any of the following provisions:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face="Wingdings">&#111;</FONT> Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face="Wingdings">&#111;</FONT> Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))
</DIV>

<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD></TD><TD colspan="8"><A HREF="#000">Item&nbsp;2.02. Results of Operations and Financial Condition</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#001">Item&nbsp;4.02. Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;7.01. Regulation&nbsp;FD Disclosure</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;9.01. Financial Statements and Exhibits</A></TD></TR>
<TR><TD colspan="9"><A HREF="#004">SIGNATURE</A></TD></TR>
<TR><TD colspan="9"><A HREF="#005">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="p72073exv99w1.htm">EX-99.1</A></TD></TR>
</TABLE>
</CENTER>
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<!-- link2 "Item&nbsp;2.02. Results of Operations and Financial Condition" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;2.02. Results of Operations and Financial Condition</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">On March&nbsp;27, 2006, CSK Auto Corporation (the &#147;Company&#148;) issued a press release announcing the
postponement of its scheduling of a date for release of its fourth quarter and fiscal 2005
financial results and related investor call. In addition, the press release contained certain
financial information for the fourth quarter of fiscal 2005 and full year fiscal 2005. The full
text of the press release is being furnished as Exhibit&nbsp;99.1 to this report.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The information contained in this Item&nbsp;2.02 and the exhibit attached hereto shall not be deemed
&#147;filed&#148; for purposes of Section&nbsp;18 of the Securities Exchange Act of 1934, and shall not be deemed
incorporated by reference in any filing with the Securities and Exchange Commission under the
Securities Exchange Act of 1934 or the Securities Act of 1933, whether made before or after the
date hereof and irrespective of any general incorporation language in any filings.
</DIV>

<!-- link2 "Item&nbsp;4.02. Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4.02. Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">On March&nbsp;23, 2006, the Audit Committee of the Board of Directors of the Company concluded that, due
to certain accounting errors and irregularities, (i)&nbsp;its financial statements as of
January&nbsp;30, 2005 and February&nbsp;1, 2004, and for each of the three fiscal years in the period ended
January&nbsp;30, 2005, (ii)&nbsp;its selected consolidated financial data for each of the five years in the
period ended January&nbsp;30, 2005, and (iii)&nbsp;its interim financial information for each of its quarters
in fiscal 2003 and fiscal 2004 included in its Form 10-K for the fiscal year ended January&nbsp;30,
2005, and its interim financial statements included in its Forms 10-Q filed for the fiscal year
ended January&nbsp;29, 2006, should no longer be relied upon. The Company intends to file restated
annual financial statements and current year interim financial statements as soon as reasonably
practicable.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Based on the Audit Committee&#146;s preliminary understanding and inquiries, the accounting errors and
irregularities relate primarily to the Company&#146;s inventories and vendor allowances, as follows.
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">1.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>In-Transit Inventory.</U> The Company is investigating a potential overstatement of
approximately $27&nbsp;million in its in-transit inventory. It appears that at least $20&nbsp;million
of this inventory overstatement originated in periods prior to fiscal year 2002.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">2.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Other Inventory Accounts.</U> The Company has identified certain costs included in
its inventory, a portion or all of which appear to be improper. The aggregate fiscal
year-end balances of these costs were approximately $13&nbsp;million in fiscal 2001, $14&nbsp;million
in fiscal 2002, $28&nbsp;million in fiscal 2003, $32&nbsp;million in fiscal 2004 and $25&nbsp;million in
fiscal 2005. The effects of such improper costs on cost of sales by fiscal year, if any,
have not yet been determined.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">3.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Vendor Allowances.</U> Certain vendor allowance receivables on the balance sheet
at the end of fiscal 2004 that were refunded or written off in fiscal 2005 are being
investigated. It appears that between approximately $4&nbsp;million and $10&nbsp;million of such
receivables may have resulted from errors or irregularities in prior periods.</TD>
</TR>

</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Although the Company has concluded that a restatement of its financial statements will be required,
additional inquiry and analysis needs to be conducted by the Company and the Audit Committee before
any conclusions are reached as to the time periods and amounts involved. In addition, there can be
no assurance that additional matters will not be identified that require further analysis relative
to their impact on previously issued financial statements or that the amounts involved and nature
and extent of the accounting errors and irregularities may not ultimately differ materially from
that described above. The Company will be evaluating whether these accounting errors and
irregularities were the result of one or more material weaknesses in its internal control over
financial reporting in addition to those previously reported in its fiscal 2004 Form 10-K. Although
the Company and the Audit Committee have not completed the evaluation of internal control over
financial reporting for fiscal 2005, it is likely that the Company and its independent registered
public accounting firm, PricewaterhouseCoopers LLP (&#147;PwC&#148;) will conclude that the Company&#146;s
controls continue to be ineffective as of January&nbsp;29, 2006. The Company has discussed these matters
with PwC.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Company believes that the above-described accounting errors and irregularities will have no
impact on the Company&#146;s reported sales or overall historical cash flows and should have no impact
on its ability to honor its contractual commitments or operate its business in the ordinary course.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Portions of this report may constitute &#147;forward-looking statements&#148; as defined by federal law.
Although the Company believes any such statements are based on reasonable assumptions, there is no
assurance that actual outcomes will not be materially different. Any such statements are made in
reliance on the &#147;safe harbor&#148; protections provided under the Private Securities Litigation Reform
Act of
</DIV>
<P align="center" style="font-size: 10pt">2
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">1995. Additional information about issues that could lead to material changes in the Company&#146;s
performance is contained in the Company&#146;s filings with the Securities and Exchange Commission.
</DIV>

<!-- link2 "Item&nbsp;7.01. Regulation&nbsp;FD Disclosure" -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7.01. Regulation&nbsp;FD Disclosure</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The information set forth in &#147;Item&nbsp;2.02. Results of Operations and Financial Condition,&#148; including
the exhibit referred to therein, is incorporated herein by reference.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The information contained in this Item&nbsp;7.01 and the exhibit attached hereto shall not be deemed
&#147;filed&#148; for purposes of Section&nbsp;18 of the Securities Exchange Act of 1934, and shall not be deemed
incorporated by reference in any filing with the Securities and Exchange Commission under the
Securities Exchange Act of 1934 or the Securities Act of 1933, whether made before or after the
date hereof and irrespective of any general incorporation language in any filings.
</DIV>

<!-- link2 "Item&nbsp;9.01. Financial Statements and Exhibits" -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9.01. Financial Statements and Exhibits</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">This information shall not be deemed &#147;filed&#148; for the purposes of Section&nbsp;18 of the Securities
Exchange Act of 1934, and shall not be deemed incorporated by reference in any filing with the
Securities and Exchange Commission under the Securities Exchange Act of 1934 or the Securities Act
of 1933, whether made before or after the date hereof and irrespective of any general incorporation
language in any filings.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;The following exhibit is furnished with this Form 8-K:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Exhibit No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">99.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Press Release dated March&nbsp;27, 2006.</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">3
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "SIGNATURE" -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURE</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly
caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="48%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="24%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="20%">&nbsp;</TD>
</TR>
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<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">CSK Auto Corporation
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By:
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">/s/ JAMES B. RILEY</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">James B. Riley</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Senior Vice President</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Financial Officer</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">DATED: March&nbsp;27, 2006</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">4
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Exhibit No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">99.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Press Release dated March&nbsp;27, 2006.</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">5
</DIV>

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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>p72073exv99w1.htm
<DESCRIPTION>EX-99.1
<TEXT>
<HTML>
<HEAD>
<TITLE>exv99w1</TITLE>
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<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><b>Exhibit&nbsp;99.1</b>
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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>CSK Auto Corporation to Postpone Release of Fourth Quarter and Fiscal 2005 Financial Results
and Related Investor Call</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">PHOENIX, AZ, March&nbsp;27, 2006 &#151; On March&nbsp;27, 2006, CSK Auto Corporation (NYSE: CAO) announced the
postponement of its scheduling of a date for release of its fourth quarter and fiscal 2005
financial results and related investor call.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The postponement is being made to provide adequate time for the Company and the Audit Committee of
the Board of Directors of the Company to conduct a thorough review of certain accounting errors and
irregularities discovered in the course of the Company&#146;s ongoing assessment of internal control
over financial reporting required under Section&nbsp;404 of the Sarbanes-Oxley Act of 2002 and an
internal audit. The Audit Committee recently retained independent counsel, who, in turn, retained a
separate accounting firm, to conduct an investigation relative to the accounting errors and
irregularities.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Based on the Audit Committee&#146;s preliminary understanding and inquiries, the accounting errors and
irregularities relate primarily to the Company&#146;s inventories and vendor allowances, as follows.
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    <TD><U>In-Transit Inventory.</U> The Company is investigating a potential overstatement of
approximately $27&nbsp;million in its in-transit inventory. It appears that at least $20&nbsp;million
of this inventory overstatement originated in periods prior to fiscal year 2002.</TD>
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<TR>
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    <TD><U>Other Inventory Accounts.</U> The Company has identified certain costs included in
its inventory, a portion or all of which appear to be improper. The aggregate fiscal
year-end balances of these costs were approximately $13&nbsp;million in fiscal 2001, $14&nbsp;million
in fiscal 2002, $28&nbsp;million in fiscal 2003, $32&nbsp;million in fiscal 2004 and $25&nbsp;million in
fiscal 2005. The effects of such improper costs on cost of sales by fiscal year, if any,
have not yet been determined.</TD>
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    <TD><U>Vendor Allowances.</U> Certain vendor allowance receivables on the balance sheet at
the end of fiscal 2004 that were refunded or written off in fiscal 2005 are being
investigated. It appears that between approximately $4&nbsp;million and $10&nbsp;million of such
receivables may have resulted from errors or irregularities in prior periods.</TD>
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Although the Company has concluded that a restatement of its financial statements will be required,
additional inquiry and analysis needs to be conducted by the Company and the Audit Committee before
any conclusions are reached as to the time periods and amounts involved. In addition, there can be
no assurance that additional matters will not be identified that require further analysis relative
to their impact on previously issued financial statements or that the amounts involved and nature
and extent of the accounting errors and irregularities may not ultimately differ materially from
that described above. The Company will be evaluating whether any of the accounting errors and
irregularities were the result of one or more material weaknesses in its internal control over
financial reporting in addition to those previously reported in its fiscal 2004 Form 10-K. Although
the Company and the Audit Committee have not completed the evaluation of internal
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">control over
financial reporting for fiscal 2005, it is likely that the Company and its independent registered
public accounting firm will conclude that the Company&#146;s internal controls continue to be
ineffective as of January&nbsp;29, 2006.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Company has concluded that (i)&nbsp;its financial statements as of January&nbsp;30, 2005 and February&nbsp;1,
2004, and for each of the three fiscal years in the period ended January&nbsp;30, 2005, (ii)&nbsp;its
selected consolidated financial
data for each of the five years in the period ended January&nbsp;30, 2005, and (iii)&nbsp;its interim
financial information for each of its quarters in fiscal 2003 and fiscal 2004 included in its Form
10-K for the fiscal year ended January&nbsp;30, 2005, and its interim financial statements included in
its Forms 10-Q filed for the fiscal year ended January&nbsp;29, 2006, should no longer be relied upon.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Nevertheless, the Company believes that the above-described accounting errors and irregularities
will have no impact on the Company&#146;s reported sales or overall historical cash flows and should
have no impact on its ability to honor its contractual commitments or operate its business in the
ordinary course.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">In light of the potential impacts of the accounting errors and irregularities on fiscal 2005
periods, the Company is unable to schedule the release of its fourth quarter or full year fiscal
2005 operating results at this time; however, based on its understanding to date, the Company
believes that its net income for the first three quarters of fiscal 2005 will not be negatively
impacted. Sales (on a stand-alone basis, excluding the newly acquired Murray&#146;s Discount Auto
Stores) for the fourth quarter continued to be disappointing, with approximately flat comparable
store sales, consisting of a decline of 2% in retail same store sales and an increase of 9% in
commercial same store sales. The Company expects to report free cash flow (cash flow from
operations less capital expenditures) in excess of its prior projections for fiscal 2005.
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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Company will file with the Securities and Exchange Commission its restated annual financial
statements and current year interim financial statements as soon as reasonably practicable. The
Company will announce the date of its earnings release and conference call at a later date.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Portions of this release may constitute &#147;forward-looking statements&#148; as defined by federal law.
Although the Company believes any such statements are based on reasonable assumptions, there is no
assurance that actual outcomes will not be materially different. Any such statements are made in
reliance on the &#147;safe harbor&#148; protections provided under the Private Securities Litigation Reform
Act of 1995. Additional information about issues that could lead to material changes in the
Company&#146;s performance is contained in the Company&#146;s filings with the Securities and Exchange
Commission.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">CSK Auto Corporation is the parent company of CSK Auto, Inc., a specialty retailer in the
automotive aftermarket. As of January&nbsp;29, 2006, the Company operated 1,273 stores in 22 states
under the brand names Checker Auto Parts, Schuck&#146;s Auto Supply, Kragen Auto Parts and Murray&#146;s Auto
Parts Stores.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Investor Contact: Brenda Bonn &#151; Manager, Investor Relations 602-631-7483<BR>
Media Contact: Ashton Partners &#151; Mike Banas 312-553-6704
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