I have acquired an additional stock TJ fog light switch. I'm no electrical genius nor expert i know the + is power - ground . There are 4 wires leading out of the back side. Each a different color wire. What wire does what function? I am using a Bosch relay in the equation. This is so that I can split my windshield fog lights and my bumper (stock) fog lights to two different switches which each can be operated by themselves. thank you very much and have a good one.