Just got my 2006 A4 back from having the front bumper re-painted and noticed the Homelink is not working. Since the red light on the button panel does not light, I am guessing the body shop failed to reconnect the sensor behind the bumper. Before I send the car back, does anyone know if this is a simple fix? Is there a way for me to get at the sensor to reconnect without removing the front bumper? Thx.