Is the amp gauge pinned?
FWIW......
Sadly. New doesn’t mean working correctly or it is a good component.
I had an OE voltage regulator fail on me in that it would only allow maximum charging. Nothing else but full tilt, slamming the needle on full blast.
The only other time I have seen my amp meter rung at hard was with a truly dead battery. It was an attempt to charge a known dead battery. I have seen it run high when the lights were on, along with everything else plus the radio/amp cranking. But that’s not the same.
