Has anyone had a problem with their A6 Navi Stereo? Twice in a week I had issues.

The first time was when my Blue Tooth picked up a call. It wouldn't pick up and when I hung up, the stereo was very muffled and sounded like it was in a box and was not loud at all. Sounded like the speakers were blown.

The second time was today. I got in the car, started it up and the media connection for the iPod stated "loading." It never stopped. I switched to FM, Sirius, even called and used the blue tooth but no sound. One more thing, the display was normal, everything worked fine, just no sound whatsoever.

Any ideas before I take it in?