2001 X5 Electrical Problems

[dawgman]

My car is acting really strange and I am trying to figure it out. All of the brake lights started coming on, so I replaced the brakes, which had about 60k miles on them. I replaced 2 of the sensors and those lights (DSC, ABS) are still on. I was hoping new brakes and sensors would solve that problem, but they haven't. My stereo (aftermarket) cut off the other day when I tried honking the horn, which also stopped working. Now, occasionally when I try honking the horn, all of the interior lights come on. The trans. fail program and check brake lights keep popping up and I know the transmission is fine because I just spent $5k last month to replace it. On top of that, none of the switches by the seat heaters work and the rear wiper stopped working along with the rain sensing part of the front wipers. This all happened in the last few days. The stereo will some times power on when the car starts, and other times it will not. It also shuts off during the drive followed by the trans. fail message at the same time. Sometimes when I turn on the seat heater, it will turn the stereo will turn on.

Serious gremlins going on right now. I have spent over $7k in the last 2 months on this car and am really hoping I don't have to spend a few more thousand on new computers. I replaced the battery hoping to solve the problems, and it did not unfortunately. Any ideas would be very appreciated. Thanks.