Or yo can run the alternators output directly to the battery + side bypasaing thr bulkhead connector, and use a fusable link at the battery end. Then run dplit dual feeds into the bulkhead off the starter relay in the fenderwell. Pic #2 bypasses alternator output going thru the firewall before going back to the battery. No extra grommet, or moving wires out of the bulkhead needed.
View attachment 1715319450
View attachment 1715319451