How to Install Power Folding Tow Mirrors on 2005 GMC Sierra rant.li

The puddle lights—which illuminate the ground when you unlock the truck or open the door—should be wired to the dome light circuit or the courtesy light circuit. This ensures they activate whenever your interior lights come on. Importantly, the puddle lights can also be set to activate with your headlight system's approach lighting. Some aftermarket kits allow the puddle lights to turn on when you press the unlock button on your key fob, which also triggers your headlight parking lights or headlights. Integrating the mirror puddle lights with your headlight approach lighting creates a welcoming, modern entrance experience. However, be mindful of the electrical load. Adding mirror turn signals and puddle lights draws additional current. If you have already upgraded your 2005 GMC Sierra headlight to LED bulbs, you have freed up some electrical capacity because LEDs draw less power than halogen headlight bulbs. This extra capacity is perfect for powering your new mirror functions without stressing the truck's wiring.