A few years back I restored my dash cluster with coverlays, LED's and I had the stock AMP gauge retrofit to be a Volt gauge.
The instructions said to simply connect to a 12v keyed on source in the dash and ground it, which I did.
What I have come to dislike about this set up is that the volt gauge reacts to everything I power up inside the car.
Turn stereo on, the gauge drops, headlights, gauge drops, AC and it drops drastically, windshield wiper on and the gauge click back and forth.
A few things I notice;
On later model vehicles with stock volt gauge, like my Suburban, they don't notice or react to any power used in the vehicle. I also notice that when I hit the rear defrost in my 5.0 the volt meter doesn't notice it. That's because rear defrost gets power from the positive terminal of the starter solenoid. Not from inside the dash.
SO,
Does anyone know of a wiring technique where I can wire my volt gauge into the engine compartment, to get an actual reading on my alternator charging? That's supposed to be the purpose of the volt gauge anyway.
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