Having options is a great thing. And if you have a 2004 or newer Alpine satellite radio-compatible stereo in your dash, you have the option of using it to listen to SIRIUS.
SIRIUS created the SIR-ALP1 radio to work with the Ai-Net connection in Alpine stereos. The stereo will display channel information, including channel name, artist name, and song or program title. The radio also features a built-in pass-through, so you can still connect an Alpine CD changer, if you like. The SIR-ALP1 radio includes an antenna.
Note: A subscription to SIRIUS is also required. Satellite radio service is available only within the lower 48 states not available in Hawaii or U.S. territories. Limited service is available in Alaska.