I'm sure this question has been asked and there is probably 500 responses, but i haven't found them in my search so here it is.
i recently installed prosport gauges, they work and look great. but i can't change the back light from white to green. I've tried multiple wiring patterns, and different sources but nothing is working. i have the prosport electrical gauges btw. and my boost gauge is reading in inHg any way to switch that?