"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!
Battery feed was taken from the battery (under the hood) through a auto reset Circuit breaker
The brake controller was grounded under the dash, tot he drivers "kick panel" with a small sheet metal screw, but you can ground it anywhere you can find a good ground
Under the hood, we installed a circuit breaker, to power the controller (running the power into the cabin, though the firewall grommet), connecting to the 10mm nut on the main power stud on the battery The brake feed from the controller is the blue Blue wire, We use "double jacket wire" and use the black wire as 12 volt power supply to the rear 7way plug as well as power the controller.
We used the existing 4 flat plug for the three light circuits
Remember, most 7 way plugs have different colors- so it might be:
yellow wire to the red terminal
brown wire to green terminal
and green wire to yellow terminal- the center pin on the 7 way is back up lights or AUX