If the output of the alternator goes through the bulkhead and ammeter circuit, you still have the problem. When the car is running, EVERYTHING is pretty much powered by the alternator, not the battery. You must determine what mods have been made, what wiring upgrades have been made, etc
Yes. Which is why he should look at the first link in post 11. Then he can see a drawing that illustrates what happens when electric fans are wired to the battery.