Anybody done one in a MkIII? Just wondering if there are any caveats or issues? Perhaps it's just like a Ford, and there is a pig tail under the dash somewhere? I can't find one mentioned in the owners manual, but I can hope, right?
What is the voltage coming from the blue/blk wire at the LCM ? I wired my 03 RR with your aid and pics. I have factory trailer wiring kit that works fine, but am getting no control of the trailer when the brakes are applied. I can push the emergency button on the control and the brakes will apply. I'm using a Hopkins Agility 47295 controller. I called Hopkins and they couldn't help but said I need battery voltage on the red sense wire. They suggested installing a separate brake switch for the trailer that works off the pedal. Any thoughts ?