EXHIBIT 23.1

              CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS

We consent to the reference to our firm under the caption "Experts" in Amendment
No. 1 to the Registration Statement (Form S-3) and related Prospectus of Sirius
Satellite Radio Inc. for the resale of $300,000,000 aggregate principal amount
of the 2 1/2% Convertible Notes due 2009 and the registration of 68,027,220
shares of common stock and to the incorporation by reference therein of our
reports dated January 23, 2004, with respect to the consolidated financial
statements and schedule of Sirius Satellite Radio Inc. and Subsidiary and
the balance sheet of Satellite CD Radio, Inc., both included in its Annual
Report on Form 10-K for the year ended December 31, 2003, as filed with the
Securities and Exchange Commission.

                                                           /s/ ERNST & YOUNG LLP

New York, New York
August 13, 2004