Alternator gauge is smoking
Yup, thing is there are kinds of "meters." The Mopar type is just a vane that reacts with magnetism in the brass strip. Closest thing you can call it a shunt, but it doesn't actually shunt anything. You can (used to could) buy "quick test meters" that you simply hold around a wire work similar, and way back in the day (58--63-ish?) one of the school busses had a dash ammeter that worked that way. Here are some various types
These are sometimes called "clip on" or "induction" which is not quite technically correct
This Sears one is being shown "either or" The "smaller" wire side is for charging system, the larger is for starter current
Yup, thing is there are kinds of "meters." The Mopar type is just a vane that reacts with magnetism in the brass strip. Closest thing you can call it a shunt, but it doesn't actually shunt anything. You can (used to could) buy "quick test meters" that you simply hold around a wire work similar, and way back in the day (58--63-ish?) one of the school busses had a dash ammeter that worked that way. Here are some various types
These are sometimes called "clip on" or "induction" which is not quite technically correct
This Sears one is being shown "either or" The "smaller" wire side is for charging system, the larger is for starter current