Good
Freakin'
Grief!

Those dash ammeters are about as accurate as using a piece of log chain nailed to a fence post as a wind sock at the Kansas farm I just visited. If the chain is standing straight out- - - -"It's windy today!". Put a horseshoe-shaped strip of stainless steel across the back of the ammeter to carry most of the current, and be done with it! It protects the gauge, and there's enough bleed current through the meter to make the needle deflect. Anything more sophisticated is a big waste of time and effort!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!