Thanks Del!
OK. I don't recall a white connector. I'll double check in a few. Just checked voltage on batt ( on trickle). Would even a stock ( van app) from the 80s have the same protection?
I'm not really familiar with the van wiring. That could go either way. About all I can advise is "trace it" and see if the charge wire goes through the bulkhead, AND if the ammeter has large wires like the older cars
SOME of the newer cars used "external shunt" ammeters --the clue is that the ammeter wires are very small like 18 or 16 or so because they no longer carry much current due to the shunt--which in reality is part of the wire harness itself
