I saw a XM radio home kit with a home dock, cartridge, mini-tuner, and antennae at Best Buy, but it says I need an XM-ready radio for this equipment to work. Can I just use a radio with an "AUX" hookup, or do I have to get a special XM-ready radio to use my home antenna and equipment and listen to XM in my bedroom? I can't find any stellite-radio ready radios anywhere! Radio Shack says if I buy a special piece of equipment from them for about $8, I can use any radio with an AUX hole. I thought Radio Shake was a Sirius-only company, though, so I'm not sure if they can help me with XM. Or can they? Should I look online for an XM-ready radio, or go to Radio Shack? Suggestions? Also, I have headr that getting a good signal and getting good reception can be potentially problematic with these home kits. Anyone here think that is true? If I can't get reception, then the kit is obviously not worth getting.