*originally posted in Jan~March 2014 (updates merged)*
To make sure that all the wiring will be protected, I installed small square tubes to pass the wires through. I call them my little electric avenues! The electrical box will be installed on the passenger side anti-twist beam about where all the tubes gather in a “rising sun” pattern:
As you can see, the trailer plug main wire also has its own protective tube. In all, the placement of the electrical box will permit easy access while being out of normal view. The trailer lights will probably be the last stuff I’ll install to make sure I don’t damage them.
Anyone that ever did wiring on a vehicle knows that the job always takes longer than planned for. The important thing is not the get the blues out of it. Trailer wiring is not different although much more straight forward…
I’ve decided that for the trailer brakes, it would be safer to wire them all individually into the junction box. That way, if one wire is damaged or corrodes out, only that brake will be affected. It does take longer to do but I figured it was worth the extra effort!
Starting up wiring the brake wires into the box:
I’ve also decided to do the same for the rear brake and tail lights. You usually wire the ground wire at the chassis near the lights. Into the box those go for me. I also had 4 old school trailer type red marker lights lying around for ages. I kept them if I ever bought a trailer for my big rig. That never happened so I decided to use them on my car hauler. Sure, they are not LEDs… but I have them so why not?! It’s one of my principles to use what you have before buying stuff.
The rest of the wiring is pretty easy to do. Here’s how the junction box looks fully hooked up:
I’ve wired the black 12v supply even though it’s not needed right now. I just might use it for when I install my winch setup on the trailer. If I go with a battery charger, that is, I might not. There’s another unsuspecting lighting wire that’s hooked up for those who know what it’s for…
A STEP BACK & FORWARD!
I’ve added an extra protection tube for the left front marker lights: