ya I am trying to work my way through the 89 harness.. I have had no luck finding a schematic for any of it except a pin-out for the back of the gauge cluster so if nothing else I will bust out the trusty voltmeter and start running continuity checks between the gauges and the plugs for the ecu so then I can get the gauges up and running.... thats about all I have left to get figured out and I can start soldering wired together... I snapped a few pics of what I am up against you can see how the previous owner has cut the stock harness where it goes to the under-hood fuse and relay boxes so this leaves me to figure out whats what here as well so this is gonna be a real pain in my