"Standard" Wire colors to the controller (Tekonsha and others):
- Black, Battery Positive to controller
- White, Negative Ground for Controller
- Blue, Brake feed from controller to Trailer plug at back of truck
- Red, tap into truck Brake light switch signal to tell controller to apply brakes
Remember, the above colors are just a GUIDE. your colors may be different, read the instructions!
On the "out" side of the breaker, connect two black wires, one to supply the power to the brake controller itself, and (optional) a 2nd battery feed to run to the trailer plug at the back of the truck. In the picture, this is the black wire.
Under the dash, we drilled a hole to pass the wire through. As you can see, the white wire is connected to the Blue wire from the brake controller. and the black (from the battery feed) is connected to the back on the controller, to supply power.
