Purchased an A4 a couple of weeks ago, and the radio is stuck on 104.5, and can not Change station, or change source. Seems that none of the buttons on the face of the radio work, except the volume ****. Is there a way to reset the radio without putting it in safe mode? I have tried to pull power from the battery, but that didn't do it, and either did pulling the power connector from the back of the radio. I have a VAG-COM if anyone knows of an adaptation to reset the radio.

Thanks

Lee