so will be in the process of adding electric brakes to the boat trailer and a complete light/wire re-do. I really want to get away from the frame mounted brake/light ground wire that you so often see, and run both ground and power all the way to the junction block! My problem I'm running into is running out of room in my junction box! designing it out, I'm coming up with 20 ground wires for all the lights and brakes! no way you will fit that on the one ground stud in your common 7 way junction blocks. I found a 10 way junction block, that will help, but I'm still looking at 11 positive wires for the marker/running lights.
just looking for ideas and what you guys have done.
trailer has; 4 brake plates, 2 S/T/T, 2 back up 1 center id bar, 10 side marker lights.