Alternator and Voltage Regulator Questions

Yes, either the MAD mod, or just jumpering a wire from alternator to battery or starter relay, does two things

CAVEAT..........the jumper wire leaves you without fuse link protection unless you provide one

First, since the charge current is now going through the jumper to the battery, that extra current is relieved through the body wiring.

Since the body loads, such as heater, lights, ignition, etc, is now the only current going through the bulkhead, the big black and the big red effectively become paralleled. This helps tremendously

HOWEVER the above does NOT "fix" bad connections in the bulkhead connector, or other connectors such as the headlight/ headlight switch, ignition switch or connector etc, etc