I have a Garmin 2720 that connects to my palm treo and scala teamset via bluetooth. Works great! Has anyone used the 2820 with XM satellite radio. If so, does the bluetooth work adequately with the scala rider to enable a decent musical experience? The battery on the scala rider is fairly robust but such usage may push its limits on a day ride. Anyone have any ideas. My ultimate goal is to get satellite radio on my radio equiped RT. The above solution was one possibility. Anyone have input or other ideas?