Previous owner of my car had a hitch installed but the wiring for the hitch was not hooked up. I searched the internet high and now for the 2001 Pontiac Bonneville'* Tail light wiring diagram but could not find a thing with the color codes so I know which wire belongs to what. The wires for the trailer converter is labeled its just a matter of knowing which wires belong where. Any help will be very much appreciated.

Thank You.