Re: Do H3s have "Trailer Brake Wiring Harness Adapter"?
My h3 came with two adapters so that the trailer wiring harness on the back next to the hitch can connect with the trailer plug.
when you do this, the brake lights and turn signals should be transmitted automatically to the appropriate lights on the trailer.
If you have a trailer equipped with surge brakes, they should function automatically.
That's my 2 cents
|