XM / Sirius Satellite Radio Sirius Connect GM Compatible 2003-08 SIR-GM1 Tuner

About the SIRIUS SIR-GM1 (SEE PHOTO FOR VEHICLE COMPATABILITY). If the factory stereo in your 2003-up General Motors vehicle is satellite radio-ready, you now have the option of adding a SIRIUS radio. SIRIUS adapter package includes SIRIUS radio, factory-system adapter cable and box, and roof-mount antenna. Works with compatible, satellite radio-ready GM factory stereos. What’s in the box. SIRIUS SIR-GM1 owner’s manual. Sirius Satellite Radio tuner. Magnetic Sirius antenna with attached 21′ cable (right-angle single SMB connector). Factory SDAR interface cable. Power harness with in-line fuse and filter. 5.5 Rubber adhesive backed antenna cable cover/tail. Cadillac CTS Installation Modification sheet.