Sirius does seem to be the pathfinder here, then XM follows their lead to remain competitive. XM probably has a lot more subscribers, just because they have a robust marketing campaign. Video streaming is cool if you don't try to watch it while the wheels are spinning. Neat but not sure I'd use it much.

Joe, inside the wing would be awesome, but could it actually could work that way, through the plastic? If I cover it with my hand, get under the right tree or an overpass, it can drop out, so I'm just not sure how that would work. Maybe I'm missing something here? Like the way you think, though!

What would be nice is one antenna that picks up satellite/AM/FM all at once, that is as small as the stock antenna's base, and attaches in the same place, the same way. :-) Oh, and maybe some fake machine gun barrels in the front cladding holes. Better yet, in the back, with a cranky anti-tailgating sign.