Putting a gauge cluster in my '69 SS. I have a new M&H harness. Which are the wires to the battery guage? Is it the Black & Black/White with a tan connector? I hope so as I am running out of wires, If so, which goes where on the connector posts. Cannot find a drawing showing these wires as i thought I had seen a diagram at one time showing pink&brown, but this I think is for the tach. Please help as I am trying to get my dash in this weekend.