You should be able to back the pins of the wiring harness out using a tiny screw driver..then you can pop the prongs onto the OEM socket to see which combination works properlytrickyVibe wrote:thats what I was think but I looked at the stock plug on my vibe and all 3 wires are red...but if that is the issue then how would I go about changing the wires around. Would i have to cut all 3 wires and buy a new plug?