I was able to tap into the tail light wires on the BCM, run a connector to the tow bar. It uses the tow vehicle's 12v to power the tail lights.I planned on just crossing this bridge when I get to it, but ... the tow bar package comes with a harness, which should plug into any standard towing package adapter on the towing vehicle. Then I imagine you would just need to tap certain wires on the Goblin to send 12v to the brake lights, supplied by the plug on the towing vehicle.
Chad, can you post a diagram on how you did that?