I have a 89 sonic 30SS. Twin 454 with 2 batteries and a Perko battery switch. I had to pull all the wires off and my dumbass didn't label them so now I don't remember what went where.

Does anyone have a link to a diagram or if someone could just guide me in the correct direction I sure would appreciate it.

Basically should be one + battery lead to 1, one + battery lead to 2. Common goes to starter(s) depending on if twins or single.