Thanks for the pics and explanation. I got looking at some wiring diagrams and it shows the 16v SS as having one wire and the 1.8l SS as having 2 wires so I'm guessing that I will need the one from the 1.8l donor? I also have a cluster from a newer GV, would that have the same one as the 1.8l? I don't have a wiring diagram for the newer trucks to compare with.