So the wire I need to connect is coming off of the da plug on the alternator. I have the 3 prongs like the diagram provided. Still confused on which prong to connect it to?

Sorry I am new to this...

Matt


1950 GMC 100

1954 GMC 470

1954 Chevy 3100 Hydramatic
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1957 Ford 850 Tractor (video)