Is there a trick to how it should be routed? I've temporarily jumpered the 'A' circuit to the positive terminal of the driver's side battery so it's at least charging, but my long term options seem to be to repair or replace the harness on the top of the motor. Not sure which exact part that is but preliminary googling suggests it's around $600 :O I guess I don't really have a question exactly, but if anyone has a suggestion on how to proceed, I'm happy to try it.
I'm even open to bypassing that harness. I think the 'I' circuit could be tapped in where the dual alternator jumper sits near the passenger side battery; the 'A' circuit straight to the battery +; the B+ wire too. (Yes I'd fuse each.)
But the harness in the pics has a lot more in it than just the alternator wires. I need to prevent it from rubbing.