ok. im installing an indicator light to come on as soon as i switch my ignition switch on. Heres how its set up, I have a switch that all it does is interrupt the signal from the yellow and yellow/green wires to the ignition switch (on the steering column). Like i said i want the light to come on whenever i flip the switch on. I've been trying to figure out whether I have to ground one side of the light or not...i just don't get it...HELP please :cuss: