After planning a few trips for the summer and being on a couple of boring rides, I am wondering about putting satellite radion on a bike. I like sirius better than XM (sirius gets better reception here anyway) but sirius has no truely portable receivers. XM now has the Inno and Helix but at $400 a pop - I'm feeling a bit like our "Scorched Yeller" friend!!! Has anyone tried mounting a receiver and antenna to their S3? How did you do it? How did it work?