I purchased an xm module for my 2004 Audi 1.8T. The radio has the SAT button that says "No Sat Radio" when pressed. Based on what I have read, that meant the car was prewired for SAT. The sat antenna is on the top of the car.
I just discovered this is not the original radio. I looked in the panel in the trunk but cannot find wires to connect the tuner.
Please help.