- Mar 1, 2004
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Installed a Granada Proportioning Valve on my 67 the Granda has 2 wires coming from the Brake Wrning Switch and my wiring harness only has one wire. Can anyone who has used one of these tell me how I can wire this up? One wire is green with black and the other is black with white. I believe one is power and one is a ground but do not know. PLEASE HELP!