<SUBMISSION>
<ACCESSION-NUMBER>0000950153-06-000990
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20060414
<ITEMS>2.02
<ITEMS>7.01
<ITEMS>9.01
<FILING-DATE>20060414
<DATE-OF-FILING-DATE-CHANGE>20060414
<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>06760358
</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>p72177e8vk.htm
<DESCRIPTION>8-K
<TEXT>
<HTML>
<HEAD>
<TITLE>e8vk</TITLE>
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<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"><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<BR>Pursuant to Section 13 or 15(d) of the<Br>
Securities Exchange Act of 1934</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Date of report (Date of earliest event reported): April 14, 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>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B><BR>
(State or Other Jurisdiction of<BR>
Incorporation)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>001-13927</B><BR>
(Commission File Number)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>86-0765798</B><BR>
(I.R.S. Employer<BR>
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>
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<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 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="1%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))</TD>
</TR>

</TABLE>
</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>
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</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;7.01. Regulation&nbsp;FD Disclosure</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;9.01. Financial Statements and Exhibits</A></TD></TR>
<TR><TD colspan="9"><A HREF="#003">SIGNATURE</A></TD></TR>
<TR><TD colspan="9"><A HREF="#004">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="p72177exv99w1.htm">Exhibit 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 April&nbsp;14, 2006, CSK Auto Corporation (the &#147;Company&#148;) issued a press release announcing that,
pending completion of the previously announced investigation by the Audit Committee of the
Company&#146;s Board of Directors into certain accounting errors and irregularities, it is delaying the
filing of its annual report on Form 10-K (&#147;Form&nbsp;10-K&#148;) for the fiscal year ended January&nbsp;29, 2006
(&#147;fiscal 2005&#148;). The Company will file its Form 10-K as soon as reasonably practicable; however,
the timing is dependent upon substantial completion of the aforementioned investigation and
completion by the Company of its required assessment of internal control over financial reporting
for fiscal 2005 and restatement of historical financial results. In addition, the press release
contained certain preliminary net sales 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;7.01. Regulation&nbsp;FD Disclosure" -->
<DIV align="left"><A NAME="001"></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="002"></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">(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="10%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="85%">&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 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 April&nbsp;14, 2006.</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</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 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>

<P align="center" style="font-size: 10pt">2
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "SIGNATURE" -->
<DIV align="left"><A NAME="003"></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>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">CSK Auto Corporation<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>

<TD colspan="2" style="border-bottom: 1px solid #000000" align="center">/s/ JAMES B. RILEY
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="center">James B. Riley&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="center">Senior Vice President<br>
Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">DATED: April&nbsp;14, 2006
</DIV>


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

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



<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="004"></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 -->
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    <TD width="10%">&nbsp;</TD>
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    <TD width="85%">&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 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 April&nbsp;14, 2006.</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



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

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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>p72177exv99w1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="right" style="font-size: 10pt; margin-top: 6pt"><B>Exhibit 99.1</b></div>



<DIV align="left" style="font-size: 10pt; margin-top: 18pt"><B>CSK AUTO CORPORATION ANNOUNCES DELAY IN FILING 2005 RESULTS AND REPORTS PRELIMINARY NET SALES
FOR FOURTH QUARTER &#038; FULL YEAR</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">PHOENIX, AZ, April&nbsp;14, 2006 &#151; On April&nbsp;14, 2006, CSK Auto Corporation (NYSE: CAO) announced that,
pending completion of the previously announced investigation by the Audit Committee of the
Company&#146;s Board of Directors into certain accounting errors and irregularities, it is delaying the
filing with the U.S. Securities and Exchange Commission (SEC)&nbsp;of its annual report on Form 10-K for
the fiscal year ended January&nbsp;29, 2006 (fiscal 2005).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">As set forth in the Company&#146;s press release and Form 8-K dated March&nbsp;27, 2006, the matters being
investigated by the Audit Committee relate primarily to the Company&#146;s accounting for inventories
and vendor allowances. As previously announced, the Company expects its financial results for each
of the three fiscal years 2002, 2003 and 2004, selected consolidated financial data for each of the
five fiscal years 2000 through 2004 and interim financial information for each of its quarters in
fiscal year 2004 and for the first three quarters of fiscal 2005, will need to be restated in order
to account properly for the matters identified in connection with the investigation.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Company will file its financial statements as soon as reasonably practicable; however, the
timing is dependent upon substantial completion of the Audit Committee investigation and completion
by the Company of its required assessment of internal control over financial reporting for fiscal
2005 and restatement of historical financial results. As noted in its previous release, the Company
will be evaluating whether any of the matters identified in the course of the Audit Committee&#146;s
investigation were the result of one or more material weaknesses in its internal controls in
addition to those previously reported in its fiscal 2004 Form 10-K. Based on current information,
the Company would expect to identify additional material weaknesses in its internal controls at
January&nbsp;29, 2006. The Company will conclude its evaluation and report its findings in this regard
when it files its fiscal 2005 Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Under the indentures governing CSK Auto, Inc.&#146;s $225&nbsp;million of senior subordinated notes and $225
million of exchangeable senior notes and under the Company&#146;s credit agreement, SEC filing
obligations exist with respect to the Company&#146;s annual financial information. The Company
anticipates that holders of certain of its outstanding notes may file notices of default with the
Company relating to the delayed filing of the financial statements, which notices would be a
predicate to any subsequent attempt to accelerate indebtedness. Based upon the present status and
scope of the investigation and discussions with its independent counsel and accounting firm
assisting the Audit Committee with the investigation, the Audit Committee believes that the
investigation should be substantially concluded in a timeframe that would enable the Company to
complete the required filings before any material adverse consequences would occur under these
agreements. However, the nature of the investigation is such that no assurance can be given that
this timing will be achieved.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">As of April&nbsp;13, 2006, the Company has approximately $132&nbsp;million outstanding under its revolving
credit agreement with a syndicate of lenders. Failure to deliver annual financial information
within a stated time period results in the inability to draw on the revolver. The Company is
working with its credit agreement lenders to obtain a temporary waiver of the stated time limit to
permit continued access to the credit facility pending substantial completion of the investigation,
though there can be no assurance that the Company will receive such a waiver.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">If the investigation is substantially completed such that the Company may file its audited fiscal
2005 financial statements as well as any restated prior period financial statements within the
timeframe referenced above, the Company does not believe any of the notes will be subject to a
right to be
</DIV>

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

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

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">accelerated or that the lenders under the credit agreement will choose to accelerate that
indebtedness. However, because of the uncertainties inherent in the investigation, the Company is
also engaged in preliminary discussions concerning alternative financing options in the event any
of its outstanding indebtedness is accelerated. The Company believes that by virtue of its overall
financial condition and continuing positive cash flow, it will be able to secure replacement
financing if needed. However, the cost of any such replacement financing would likely be
considerably higher than the cost of the Company&#146;s existing indebtedness.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">In light of the ongoing investigation, the Company must defer the release of its financial results
for the fourth quarter and full year fiscal 2005. However, the Company can report the following
preliminary net sales results. Net sales for fiscal 2005, including sales derived from the Murray&#146;s
stores for the period December&nbsp;19, 2005 through January&nbsp;29, 2006, increased by approximately $43.7
million, or 2.8%, compared to fiscal 2004.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Same store sales, which exclude the operations of Murray&#146;s, were approximately flat year over year,
consisting of an increase of 8.1% in commercial same store sales and a decline of 1.6% in retail
same store sales. Net sales for the fourth quarter of fiscal 2005 increased by approximately $5.4
million, or 1.4%, compared to the fourth quarter of fiscal 2004. Same store sales declined 0.2% for
the fourth quarter, consisting of an increase of 9% in commercial same store sales and a decline of
2.0% in retail same store sales. Same store sales for the first nine weeks of the first quarter of
fiscal 2006 (ending April&nbsp;30, 2006) declined 2.9%, consisting of an increase of 5.9% in commercial
same store sales and a decline of 4.7% in retail same store sales. The Company believes that its
fiscal 2006 first quarter sales have been negatively impacted by cooler and damper than normal
weather conditions and persistently higher gasoline prices, particularly in the western United
States where many of the Company&#146;s stores are located.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Company expects to report free cash flow (cash flow from operations less capital expenditures)
in excess of its prior projections for fiscal 2005. The Company expects its cash flow from
operating activities for fiscal 2006, including incremental cash flow from the Murray&#146;s store
operations, to remain strong. However, cash flow in fiscal 2006 will be adversely impacted by the
costs of the Murray&#146;s integration and the costs associated with the pending Audit Committee
investigation and financial statement restatements. Future cash flow would likely also be
negatively impacted if the Company were required to refinance any of its existing indebtedness.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The integration of Murray&#146;s Discount Auto Stores, which the Company acquired in December&nbsp;2005, is
proceeding smoothly. Commercial sales will be launched in 6 Murray&#146;s stores on May&nbsp;1, 2006, the
first stage of a plan that is projected to result in excess of 50 of the Murray&#146;s stores offering
commercial sales by the end of fiscal year 2007. Excluding Murray&#146;s stores, the Company opened 27
net new CSK stores in fiscal 2005. The Company expects to open 10 net new CSK and Murray&#146;s stores
in the first quarter of fiscal 2006, and 55 net new CSK and Murray&#146;s stores for fiscal year 2006.
</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
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">names Checker Auto Parts, Schuck&#146;s Auto Supply, Kragen Auto Parts and Murray&#146;s Discount Auto Parts.
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<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 &#150; Mike Banas 312-553-6704
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