How to Activate 12 Volt Circuit on 7-Way at Rear of Trailer for Second Trailer Brake Controller

Question:

So I pull a fifth wheel RV trailer with an 18 foot I closed trailer for my RZR I have a hitch on the back of the fifth wheel with a 7 pin plug I wolf like to use the inclosed trailer brakes to help slow things down. I have not hot wire to the back plug. Just brakes turn signals and marker lights Would the wireless Wi-Fi work on this set up. Or the one that bolts to the trailer work better at that distance. My fifth wheel is 31 feet long thanks

asked by: Brett

Expert Reply:

The Curt Echo Mobile brake controller part # C51180 is the best option for adding a second brake controller for a second trailer but it does need a 12 volt power circuit active on the 7-way at the rear of the first trailer. So what you'll need to do is run 10 gauge wire like part # 10-1-1 from the 12 volt circuit of the first trailer to the 1:00 pin of the 7-way at the rear of the first trailer.

expert reply by: Jameson C