Running Wiring For A Roof Top Warning Light

Just got a silverado 2500hd duramax and am trying to wire a cab top magnetic red light for fire and rescue.

Running wiring for a roof top warning light.

This is the best method because it is the shortest distance for the wire to travel and it has the least chance of getting smashed in your. Forget about drilling more holes and running the risk of damaging your vehicle when you already have holes for your factory lights. Chances are if you want the roof marker lamps you re going to be running wires. The roof light wiring switch that is part of the plow package is not for marker lights.

It s supposed to be used for a strobe flashing safety light. This forum helped me find the wiring but is there an existing hole through the roof say under the marker light to get the wire from the light to the switch connection. The best way to do this is to drill a new hole in your roof near your roof mount brackets and run the wiring down directly into the cab of the truck. Down the side of the windscreen glass.

When you get the light bar properly mounted to your roof and all the holes are sealed to become waterproof it s time to run your wiring.