Tail Light Wiring Harness | AutoPartsWarehouse Take away the old tail light wiring harness afterwards. Step 4: Before installing your new tail light wiring harness on the vehicle, you must fix the wires that need to be attached on it first. Trim a little portion of an electrical wire, which must be able to extend from the actual wiring harness up to the tail light. tail lights wiring harness | eBay Find great deals on eBay for tail lights wiring harness. Shop with confidence. Skip to main content. eBay Logo: 2006-2008 Charger Tail Light Wiring Harness OEM Bulb Sockets LH or RH Driver See more like this. DEPO LCI M3 Amber LED Signal Rear 4PCS Tail Light For 2007-2010 BMW E92 2D Coupe. Brand New.