What is the color code for the tail,turn,brake,and trailer What is the color code for the tail,turn,brake,and trailer brake wiring on a 2012 ram 3500 - Answered by a verified Dodge Mechanic Looking for a 2012 Dodge Ram 1500 wiring diagram (wire colors) that go to the stock 7 pin trailer connector on bumper (Truck side - not the trailer side) I see: Black Green Red White/ ?? I DO NOT have just dodge ram taillight wiring harness | eBay Find great deals on eBay for dodge ram taillight wiring harness. Shop with confidence. Skip to main content. eBay Logo: 2002-2006 Dodge Ram 1500 Tail Light Wiring Harness & Socket Connector Mopar OEM (Fits: More than one vehicle) 2 product ratings - 03-06 Dodge Ram 1500 2500 3500 Tailgate Tail Light Wiring Harness Factory Mopar .