Battery disconnect switch install question

In the Mopar Muscle article, they have a diagram that says to run one of the 8ga wires to the "switched wire feeding alternator" and the other to the "alternator". The way I interpret this is that one of them go to the 'exciter' wire, which I assume is the one that gets power only when the ignition is switched on, and that the other wire goes to where the larger output wire goes on the alternator, which would have power at all times. I'm obviously very new to this and just want to make sure I'm doing things correct the first time around. So anyways, last night I was taking a look at the alternator and the wires going to it. One is labeled the 'exciter' wire (Painless wiring harness), but it goes to a plug and obviously isn't mounted with a terminal. Once I discovered this, I went to a friend's place to discuss it with him. He said I need to run one of the 8ga wires to where the output wire comes off of the alternator and the other 8ga wire should be connected to that wire that I just took off of the alternator. My alternator has two field wires and one output wire, if that helps anyone. If my friend isn't correct, can someone guide me as to what exactly those two 8ga wires attach to? And while I have you here, does it matter which of the small terminals on the battery disconnect switch each wire goes to, or will it work the same either way?

Thanks a million! I apologize for the stupid questions.