Chad
12/9/2023
Hello, I have a 1999 GMC digger Derrick utility truck and it has a round 6 pin plug on the truck side. The trailer I'm going to pull is a large 37' pole trailer and the trailer has a 7 pin round plug. I can't find an adapter anywhere and I think I have to build my own, need some help!
Neil W.
11/12/2023
Awesome page. I’m trying to replace my 6-pin plug with a 7-pin on my gooseneck trailer. Brakes have worked great with an adapter in the past. When I look at the wiring in the 6-pin, the brake pin is not connected and there isn’t a blue wire. Just a black wire on the 12V center pin. I noticed the page said “Note: In some applications, the black battery power connection and the blue brake controller output connection are reversed.” I’m totally confused how the brakes have been working with the factory brake controller without the brake pin being used. Any help would be appreciated.
Daulton R.
11/8/2023
Thank you for providing the guidance and instruction that you do. It is extremely helpful for a lot of people. The more I visit your site the more I want to come back for help, and purchase from you.
Pj
10/26/2023
We bought a brand new 2023 dump trailer at auction. It was made in Mexico and does not have standard color-coded wiring. We have all lights and brakes, but when we turn on the headlights of the tow vehicle, the brakes on the trailer come on and stay on.
"Very easy process, good prices and my products were shipped on time and were delivered on time. The instructional videos online helped make installation easy!"
Jan M.
1/9/2024
I rewired my boat trailer per instructions, but no lights. Troubleshooting included rechecked ground (white) wire, used a volt meter to check the car 4-way connector, each light wire and even the bulb socket. All had power. Still no lights when I put the bulb in the socket. Any ideas? Thanks