Early Mopar wiring worked pretty good until it got old or power sucking items were added. Heavy current traveling through the bulkhead to the ammeter and back out don't help. The connectors get hot because of excessive resistance and corrosion develops and the added resistance makes things worse. My tan Super Bee had that issue. No crank, pop the hood, wiggle the bulkhead connector, start it up and drive away. I finally drilled the cavity out and ran a wire straight through. The bulkhead connector is really there for assembly line convenience and for the tech that needs to do harness repair. LOL