So I just grounded the GRN terminal to the body, and there is no difference. I am getting 12 volts at the relay, 9 volts at the regulator, 9 volts on the right side of the ballast, 5 at the left side, and 5 at the coil. I also found a weird click under the dash when I turn the key to the start postion. Found a strange aftermarket blue light under the dash, so pulling the dash apart next to find what the strange click is. I think my wiring is good, but as this was a basket case car, maybe someone did some funny stuff in the underdash harness. Something is pulling voltage for no reason. I have to have 12 volts at both sides of the ballast and at the coil, right? Will start pulling dash apart and keep you posted....