I have been experiencing times when I lose the sound while listening to XM, sound stays off for about 30 seconds and comes back on. I called Sirius while I was sitting in the car, explained the problem, they ran some checks and refreshed the signal. No problem on that end, so I took it to the dealer and as usual they could not duplicate the problem and told me to try and capture it on my cell, unfortunately I'm usually in traffic when it happens and by the time I get my cell out the sound is back on. Is anyone else experiencing this?