I'm working a 2008 BMW X3 and got the code p0073. I purchased the ambient temp sensor but I can not find the old one or wiring. Looks as if the previous owner hit a curb and it was damaged underneath. I found a two groups of wires with no harness attached. one has 2 wires one brown and the other green and black and another group of wires with 3 wires Hanging out yellow green, brown black and green brown. I also see someone installed aftermarket HID's and messed with wires in there. I'm looking for a wiring diagram for the sensor to figure out we're to find the wires.