Wiring Harness - AutoZone Find our best fitting wiring harnesses for your vehicle and enjoy free next day delivery or same day pickup at a store near you! Home Truck And Towing AutoZone Rewards℠ Join Today and Earn a $20 Reward When You Make 5 Purchases of $20 or More! Blazer International Quick-Connect Single Light Wiring Harness. Part Number: C3010K; ADD TO Blazer One light wiring harness - autozone The Blazer wiring harness is compatible with any LED, HID or halogen off-road light bar, work light or auxiliary light. The 9 ft. harness features a quick connect plug making it easy to quickly change-out the light. The weatherproof plug can handle up to 200 watt and has a tight seal ensuring your light stays connected. The wiring harness comes equipped with a fuse, relay and illuminated on/off switch.