Ammeter to voltmeter conversion

And the 1/4" spade terminals are not used on the ammeter. They were used on the bulkhead connector. And we've seen them get overheated in any number of locations because they were crimped to wires that were just adaquate when new, and for various reasons got overloaded in subsquent years. So the point is there are weak areas in various points through the system.
Dimmer switch.
Headlight Switch
Bulkhead
The headlight connectors are wider, but only have 18 ga wire. Fine with 40 Watt lamps but not 55/60 Watt lamps.
On my '67 Barracuda, the accessory feed at the ignition switch showed heat damage. Why? Probably because an A/C was added around 1970.
Chrysler had some pretty good work arounds to split the loads when they knew they would be higher.