Am meter bypass...technical stuff before my car catches in fire !

If you clean and repair your bulkhead connectors and leave all the stock wiring in place you can still bypass the bulkhead connectors to charge the battery.

With a wire from alt to starter relay post you no longer send the battery charging current through the bulkhead connectors and the ammeter.

But by leaving the stock wiring intact you now have 2 terminals to carry current into the car to run everything vs 1.

That means each terminal only has to carry 1/2 the current and are less of an issue.