i have searched but could not find any answers!I have a b6 s4 i have had it for 2 months and the stereo volume goes up and down when the sound is under 10 or 11 and the buttons on the steering wheel as well as the lights on the buttons work only 30 percent of the time.I took it to the dealer and they said it was the spring in the controls on the wheel, but it still works only occasionally.Does anyone have any ideas??