MAD Wiring with Autometer Voltmeter already installed

67Dart273 said

EDIT.........didn't see your added link LOL

Here's the thing: You need to think about a big main fuse, and if you simply bypass as in the last diagram, you eliminate that by means of the black alternator wire now being a "hot feed." So add another link/ fuse etc

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Fantastic. I have it figured out now. Essentially when the VM was originally installed the amp bypass was already done. I just need to add in a larger gauge wire now. i am thinking that I will go with a fuse instead of the link. What size fuse do you think would be best? I am using 8 gauge wire as the new alternator puts out about 80 amps..