I've tried every combination of the blue or inner white (from first pic) and the grey and black from the second. It is hard to tell but those are on the same half of the harness (top and bottom). The other side is all used for things like the speakers. Also one of hte wires I tapped turned out to be the power lead (realized it after when I checked it against the aftermarket harness). I get flashing from the unit but 7 fast flashes... never once did it stop on any of the LEDs to indicate I had one hooked up properly. I did my best with the service manual and forum help to narrow it down to those 4 (or three now that I realize one is actually the power lead). Not sure where to go from here. I am considering paying a professional to work on it but who knows if they will be of any help.
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