To start the wiring, I pulled the center bezel off, it comes out pretty easy. Use a small screwdriver and something to protect the bezel, it scratches if you breath on it. Once you get the top corner seperated, work your way across the top, once the top pulls out, just work your way down. You can move the shift lever back if you need some more room to work, put your park brake on, turn the key to unlock and the shifter will move back.
You can also disconnect the wires from the back of the bezel and move it completely out of the way. The existing switch blanks push out from the front, I also moved my existing switches around according to how much I use them. The blanks on the left side of the steering wheel can also be used, that panel requires you to remove 2 screws and then it pulls straight back.
After I moved my existing switches around I put the add a fuse into the fuse box on the passenger side below the glove box, I used fuses marked with ACC so they will be on when the key is turned one click. As you can see I already have an add a circuit fuse holder in there for my front LED bar.
Next ran wire from the add a fuse into the back of the bezel just below the glovebox there is a nice little shelf to put the wire. I am running 5 pin rocker switches, 2 pins (+ and -) are for the illumination (part of the switch will be illuminated when the accessory lights are on inside the cab), I tapped these into the illumination wire in the wiring harness behind the switches. The illumination wire is a red wire with blue stripe.
The other 3 posts are for -, + in, + out, (the other portion of the switch will be illuminated when it is in use).
I connected the end the wire from the add a circuit to the switch, wired a ground and sent the positive wire from the switch out the drivers side of the bezel to the hood release cable.
These are the switches I used.
I zip tied the wire to the cable and used the 3ft section of baling wire to punch a hole in the hood release wire grommet on the firewall to get the wire into the engine bay. (Same as my front LED bar hot wire).
Once you get the wire into the engine bay, some suggest running it to a relay and then to the light bar, I just ran it straight to the light bar, working the wire to the front along the fender on the drivers side and then down through the grill and to the light bar.