Running Wiring For A Roof Top Warning Light

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.

Running wiring for a roof top warning 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. Forget about drilling more holes and running the risk of damaging your vehicle when you already have holes for your factory lights. The roof light wiring switch that is part of the plow package is not for marker lights. Just got a silverado 2500hd duramax and am trying to wire a cab top magnetic red light for fire and rescue.

Do not just run the wiring loosely through the door jam. These atomic leds are designed to replace your factory lights using the same factory plug and mounting holes and to draw less power from your electrical system while creating a brighter more visible light. Chances are if you want the roof marker lamps you re going to be running wires. 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.

Running wiring from the roof is generally not a plug and play affair and will require some auto electrical knowledge in selecting suitable wiring gauge and the joining or termination of wires due to the extended length of wiring required in addition to the supplied wiring harness.