As I said int he subject line the car is a 1968 buick lesabre 4 door hard top. I have made a custom gauge cluster with equus gauges and I am wanting to retain as much of the stock wiring harness for use as possible can anyone please inform me of what the wires are and where they go on the big plug that connects to the back of the stock gauge cluster I would really appreciate the help. I have a factory buick shop manual for the car but cant seem to find a diagram in it that his the wires and connector im talking about included in it. here are the pics of the wire plug and port I am walking about just for reference. Thanks again for any help. Gregory.