12vdc 30/40a Relay Wiring Diagram Relay wiring diagram 12v amp 40 wire lights harley Wiring diagram for a 12v 40 amp relay Wiring diagram for a 12V 40 Amp relay - Harley Davidson Forums Wiring diagram for a 12V 40 Amp relay - Harley Davidson Forums Check Details ← 12vdc 30 40a Relay Wiring Diagram 12v Horn Wiring Diagram → Share with friends Link copied