honda cx500 wiring harness | eBay 1979 Honda CX500 Wiring harness. Pre-Owned. $50. or Best Offer. Free Shipping. 1980 HONDA CX500 CX 500 MAIN WIRING HARNESS. Pre-Owned. $60. or Best Offer. Free Shipping. Honda CX500 Turbo Front Wiring Harness CX500T CX650 500 650 CX650T. Pre-Owned. $49. Buy It Now +$16 shipping. cx500 wiring harness | eBay Find great deals on eBay for cx500 wiring harness. Shop with confidence. Skip to main content. eBay Logo: 1980 80 Honda Cx500c Cx 500 Cx500 Oem Main Engine Wiring Harness Motor Wire NOS See more like this. 1980 Honda CX500C CX500 Custom Oem Main Engine Wiring Harness Motor Wire 119620. Pre-Owned. $49.