Hey guys. I just got the wiring harness to take my 4pin trailer hitch wiring and go all the way to the 7 way round wiring.
The wiring harness has its 4 pin connection and 3 wires out of the pigtail with buttsplices on them.
One goes to reverse lights for a reverse lock out, one goes to a brake controller, and one goes to 12v power.
My question is: how should i connect that wire to power? Direct to battery? or to the headlights somehow so i don't have 12v going to it when the car is off?
Any input it very much welcome!