H4 Headlight Relay Trigger for Switched Accessory Installation
Looking to add electrical accessories to your motorcycle in a fashion which will allow them to "turn off" when your key is turned off but you don't want to "cut into" or "splice into" any of the wires in your factory or OEM wire harness? This Headlight Relay Trigger is the answer!
Installation is Simple:
This wiring extension installs between the back of your H4 headlight and the OEM headlight connector.
How does it work?
It provides a wire to trigger a relay that will allow you to power fog lights, driving lights, auxiliary fuse boxes, etc. without cutting your factory wiring harness. Can be used to trigger driving lights when the high beam is turned on. This trigger relay is an excellent way to add accessories to any of the BMW CanBus systems but it works perfectly with any H4 headlight on any brand of bike.