Wire Up Roof Light Switch

I ran the wires across the front of the headliner, down the pillar, behind the fuse panel and out to the engine compartment through the large grommet by the master cylinder and then under the cab and back to the headache rack where the light is.

Wire up roof light switch.

I want to wire them (with a relay) to my reverse light switch on the tranny so when i am in reverse they come on. I also want to be able to turn on. There are many ways to power up this led.

In this case, we are using the truck's interior light switch to power up the led roof lamps. A light switch is wired by running an active cable through a light fitting, then into a switch. This is entirely vehicle dependent as some vehicles windscreens do not allow this position whatsoever.

Run harness under the hood. Ground the black to a factory ground. They found a way to wire the light bar to the factory headlight switch.

Control all your accessory lights just the way you want with our silverado light switches and gauges. I have auxiliary back up lights and side lights on my 40's roof rack. Basic knowledge of how to wire a light switch.

The lighted pilot light may need the neutral wire for the operation of the pilot light. Finish with double sided 3m. The switch then either breaks the circuit, or returns the current to the grid via the light fitting, via a neutral cable, turning the light on.

To wire a relay and a switch you will need to get a 30a/40a relay spdt or spst whichever you can find, either will work in this application. This installation will take the place of one of the front map lights, but you will still have access to the other. As the phase wire should be connected to the bottom part of the light switch, the other wires should be connected in the opposite side of the switch, in the same manner, using the same technique.