Hey fellow 5'ers. I'm in need of a wiring diagram for the taillights on my 07 530xiT, but will also take a diagram for an 06-07 530xi.

Long story short: I'm hooking up wiring for a trailer, and found that these cars share the same wire for the stop and tail light (a PWM system). A vendor sold me a hitch and wiring package, but the wiring package is only for cars that have separate wires for each signal. They don't believe me, and so I'm having to prove myself with a wiring diagram...sigh. The online WDS systems don't seem to work for me; happy to look it up myself if someone has a link to one that is confirmed to be working.

Thanks!!!


Andrew