Tonight, I was driving to a friend house, filled up on gas .. everything was working. Shut off the car, filled up, started up, and tried to turn the volume up via the steering wheel, and it didn't work. I noticed the lights just on my deck (stock 6 disc deck) were out. I could turn it up via the knob on the deck, and change the track via the physical button on the deck, but nothing on the steering wheel, and the lights were out . Restarted the car a few times, no luck. Went old school and waped the side of the deck/console a few times, and it turned back on . Didn't happen again...should I be concerned? It's under pre-owned audi cert warranty for a few more months.

05.5 A4 2.0T

I DO have that device from dice, or wherever, that hooks up my iphone via the back, and takes over the SAT receiver.