Does the starter relay 12v battery post need 12v?

^^ That's roughly the plan. There is a LOT of duplication in the current setup. I've got 3 wires coming off the alternator Bat terminal and I'm going to trim that down to one. I've added a big ole wire and fuse for the charging circuit. I'm currently using the side post on the Optima red top for the charge circuit.
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Believe the other 2 wires coming off the alternator were for the ammeter and old charge circuit to the starter solenoid. Already bypassed the ammeter and have installed a volt meter so I should be able to go without both those circuits. These two are bothersome for me as they are not fused and have no protection at all for a direct short from the alternator and could potentially take out the entire harness behind the dash. I'll need to disconnect one at a time to see if that causes any unexpected issues.


I want to get back to a single disconnect point to deenergize the entire circuit. I'm likely going to grab a pair of these:

vgate batt term.jpg

Then run a good fused wire to something like this 300A bus bar for power distrubution instead of everything being ganged up on the starter relay stud:

300A bus bar.jpg

Well.. that's the "plan" at this point anyway...