Originally Posted by Three6GMC

you will prob need about 2 relays for this I'm thinking... One to take signal form the low beam relay and one to take signal from the high beam relay. The factory switch will give you your power when neither low or high are being used.


Relay one

85: Signal wire from Low beam
86: Ground
30: Positive
87: Connect to signal side of factory Fog Light relay

Relay Two

85: Signal wire from High beam
86: Ground
30: Power
87: Connect to signal side of factory Fog Light relay