Audi unveiled their brand new generation A6 model at the 2011 North American International Auto Show, in Detroit. Featuring a more conservative design and borrowing design cues from the A7, the new A6 comes with LED taillights, an integrated trunk-lid spoiler, a dual exhaust system, and optional LED headlights.
Had this same exact issue, it turned out that it was a short to ground, Audi Minneapolis needed to wire map it from the control unit in the front of the car, to the backup camera module.