VW Super Beetle Wiring Harnesses: VW Parts | JBugs The 1973 - 1979 Volkswagen Super Beetle wiring kits include wires from fuse box to taillights and engine. The VW Super Beetle wiring kit includes color coded wires. VW Super Beetle wiring harnesses with complete wiring diagrams. Main Wiring Harness, 1973-73 1/2 VW Super Beetle Sedan and Main Wiring Harness, 1973-73 1/2 VW Super Beetle Sedan and Sunroof, WM-131-1973 is made from original wiring loom schematics and is factory color coded. This is the MAIN HARNESS that runs from the fusebox in the front, to the engine and tail lights in the rear. This is ideal for doing engine wiring, or to repair engine fire damage.