1965 mustang wiring harness | eBay Find great deals on eBay for 1965 mustang wiring harness. Shop with confidence. Skip to main content. eBay Logo: 1 product rating - Used Original 1964 1/2 1965 1966 Ford Mustang Console Wiring Harness. $34. Buy It Now +$19 shipping. American Autowire 510125 Mustang Complete Wiring Harness Classic Update Kit 1965. 1965 Mustang Wiring Harness | eBay Gearhead 1964 1965 1966 Ford Mustang Wire Wiring Harness Kit Direct From Iowa. The plugs for the steering column are also included. The column plugs will fit both early and late model GM steering colu..