No wiring diagram

[Waterloo]

I used these Blue Sea units, https://amzn.to/32KXK4S
My front panel is open, kind of, I hooked it into the battery saver that came with the truck. That unit that shuts down the electric in the truck when the batteries reach a certain low voltage. It has a line that feeds direct to the battery, I tapped into that. If I forget to turn something off, it works, and shuts everything down.

The rear panel is switched, I run the power through this relay, which also feeds the amplifiers, power comes direct from the battery box. https://amzn.to/2WlviEj

I was having issues with the old stereo system, wasn't the ground, messed with that multiple times, something was coming through the fuse panel, this solved my listening issues. Now the stereo is dead silent, no more hiss or hum, that feedback from the motor is gone.

Stereo or not, I would still install at least one of these panels somewhere in the truck, to much electronic crap out here anymore, and these trucks can be a nightmare to wire up something quickly. One of these panels, once installed, makes adding stuff easy and fast.