[BigTallV]

The odd drop in signal isn't unexpected. I've managed to get into an underground parking garage (with my antenna removed b/c of height restrictions) and drove down to the second level (after obtaining a ticket and waiting for the arm to move up and out of the way) before the signal finally dropped. Again, antenna was not on either!

I find the sound quality lacking on XM compared to FM radio. The compression is particularly noticeable with when you hear the radio host speaking. They really should figure this out and drop some channels to free up bandwidth (or use a better codec).

 

[BigTallV]

I agree; some of those channels I never listen to.................XM 4 does anyone really listen to the 40's?

Technically we did, though it was only for a minute to let my kids gain an understanding of the music/sound for the given era. It's certainly not mainstream anymore though, so not necessarily everyone's cup of tea. My in-laws listened to it for a blast while they were in my truck too, but again - that doesn't often happen.

@ SALGUOD: Try tightening the antenna (if possible). You only need to have it on hand-tight. Maybe the antenna is broken internally? Did you ever drive into underground parking or a parkade, perhaps go through a car-wash with it on and have the antenna possibly bent/damaged. It could also be the area you're in, but you'd know those obstructions that could otherwise cause signal interference. Like passing under a bridge when travelling northbound. Large buildings in a downtown area, etc. Southern exposure required. I suspect you've got an antenna issue maybe. But if you're out in the 'burbs with not much blocking, you should have signal pretty much fulltime.