Wiring for Trailer hitch (B7 avant)
I just installed a towbar on the old beast* but cannot figure out where the 7-pin electrics for the trailer lights connect up to on the car. I also suspect I may need some kind of relay box/module for the type of wiring standard that this model uses? (CAN bus).
(* Audi A4 Avant 2007, 2.0 Litre TDI - manual, right hand drive)
Thanks in advance for any advice/directions.



