To tap off high beam, I used an H4 piggy back connector and used the existing head light connections . I used Switch 4 (I think, maybe 7) to control the spotlight through a relay, and used the strobe wiring ( the wires with the bullet connectors) to take the spot light wires to the front. after all why not use what is there.. You could use free strobe wiring to bring the high beam sensing to the connector in the rear..