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Before we finish with the bed, it is worth discussing your 2000 GMC Sierra headlights. Upgrading your cargo lighting is only half the battle when it comes to nighttime utility. To safely maneuver your truck while backing up to a trailer or positioning it at a campsite, you need proper forward and reverse illumination. For the 2000 Sierra, the factory halogen headlights are notoriously dim. While drop-in LED bulbs are tempting, they scatter light dangerously in the factory reflector housings. The correct upgrade is to install DOT-approved projector headlight assemblies designed for LED bulbs. These provide a sharp, focused beam that illuminates the road without blinding oncoming traffic. Additionally, consider adding LED reverse lights or mounting a small LED light bar to the rear bumper, wired to your reverse circuit. This will transform your ability to see behind you when backing up in the dark, complementing your new bed lighting perfectly.