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Admittedly, I did not look deep enough into their Website to read about the DA plug so I went back for another look. The DA plug they talk about seems to be the 2 wire plug that connects to the alternator. The red wire that they are connecting to the output charging stud of the alternator is the wire I suggested should be connected further down stream in the electrical system. It will work the same as a 1 wire alternator if connected to the output stud. The second wire they are calling the “exciter” would have originally been connected to the dashboard “dummy” light on the 70’s GM. What the “lump” is that they install in that wire they do not say. I am no expert in 6 volt to 12 volt conversions so any input from those with greater experience is welcome. Here’s a website that is worth reading before you decide how to proceed.
http://madelectrical.com/electricalt...evymain1.shtml