Sounds like you are getting close! Will be fun for us to see a video once you are all done.
A Mk2 diesel tach? I bet that would at least confirm that your W terminal is working on your alternator. If that tach powers up and registers some kind of reasonable reading then you at least know you have a good signal you can work with.
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86 745 D24T/ZF 345k lifted 2.5"
83 764 D24T/M46 155k
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