I just got my head unit replaced with a Sony Xplod unit and I noticed that when I turn my headlights on, the lights on the center console (a/c, clock, temp, etc.) go off. The lights work when the car is on, but as soon as I turn the headlights on they go off. It's pretty wierd. Any guesses as to what could be causing this problem. I have an 06 tC.