
<PAGE>   1

                                                                    Exhibit 23.4

                        CONSENT OF INDEPENDENT AUDITORS


     We consent to the reference to our firm under the caption "Experts" and to
the use of our report dated February 22, 1999 (except for Note 11, as to which
the date is February 24, 1999), with respect to the consolidated financial
statements of Renaissance Media Group LLC included in Amendment No. 5 to the
Registration Statement on Form S-1 (No. 333-83887) and related Prospectus of
Charter Communications, Inc. for the registration of shares of its Class A
Common Stock.


                                       /s/  ERNST & YOUNG LLP
New York, New York

November 4, 1999

