This is the fuse setup I'm putting under the dash. All of the hot wires and grounds will go to this panel. Only the main power lead, ground and lines direct to the items will go through the fire wall. This should eliminate a lot of the wires that currently go through the firewall.

The CB and the brake controller are mounted side by side under the dash below the radio.

I used "smurf tube" to run the antenna cable along the frame to the back of the truck. When I install the auxillory backup lights the wires for those will aslo run through the smurf tube. It gives good solid protection to the cable and wires.

Here is the end of the tube coming out along the back of the bumper. Eventually I will put a T fitting, tie down brackets and another piece of tube going to the other side as well.