SIRIUS SATELLITE RADIO TO PARTICIPATE IN THE CREDIT SUISSE FIRST BOSTON 2004 MEDIA AND TELECOM WEEK CONFERENCE

NEW YORK - December 3, 2004 - SIRIUS Satellite Radio (NASDAQ: SIRI) today announced that Joseph P. Clayton, Chairman of the Board of Directors, and David J. Frear, Executive Vice President and Chief Financial Officer, are scheduled to present at the Credit Suisse First Boston 2004 Media and Telecom Week Conference in New York, NY on Monday, December 6, 2004.

A live audio webcast of the event will be available via the Investor Relations section of sirius.com on Monday, December 6, 2004 at 1:30 pm ET. 

Any statements that express, or involve discussions as to, expectations, beliefs, plans, objectives, assumptions, future events or performance with respect to SIRIUS Satellite Radio Inc. are not historical facts and may be forward-looking and, accordingly, such statements involve estimates, assumptions and uncertainties which could cause actual results to differ materially from those expressed in any forward-looking statements. Accordingly, any such statements are qualified in their entirety by reference to the factors discussed in our Annual Report on Form 10-K for the year ended December 31, 2003 filed with the Securities and Exchange Commission. Among the key factors that have a direct bearing on our results of operations are: our dependence upon third parties to manufacture, distribute, market and sell SIRIUS radios and components for those radios; the unproven market for our service; our competitive position and any events which affect the useful life of our satellites.