Printed the 71 Plymouth and 71 Dodge dash schematics from mymopar.com - The Plymouth Valiant looks closest, but I cannot find the smaller three pin board on the diagram. I believe the wires are orange, red, and green. What does the smaller 3 pin circuit board run to?
I believe it may be easiest instead of trying to marry the two harnesses to pull the original non-rallye harness, put in the complete rally harness, try to wire in the a/c wiring, but I still can't find a diagram that shows the three pin plug and/or the wiring for an a/c rallye dash car.
