Classic Update Complete Wiring Kit-Classic Chevy Truck Parts 8. Rear body harness assembly is designed to plug into the main harness in the original connector bodies. Flexibility in harness design allows for original or custom routing. Rear body wiring includes backup light wires and mating connectors for backup light leads. License plate lead, connectors, and terminals included. Camaro Central is the Source for Camaro Wire Harnesses Camaro Central is the Source for Camaro Wire Harnesses. We offer a huge selection of stock and updated wiring harness and accessories. Front Light, Engine, Fuse Box, Dash, Tail light, and even complete Classic Update Wire Harness Kits are instock.