So I'm installing my swell new GReddy (electronic) boost gauge and am wondering why you need two positive leads, ie: red (constant?) power and orange, ignition power. I read a post where they guy tapped into the clock and only used red, white (lights) and black, and taped the orange lead. Perhaps it was a different brand of gauge. Any better ideas on where to tap power from would be much appreciated before I tear into my wiring.