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Originally Posted by ahshoe
Lost my direction from my guage trio wiring. ...
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Quote:
Originally Posted by Daves55Sedan
If you want the voltmeter inside the car (under the dashboard or somethin like that), I would trace down the big wire that connects from the starter solenoid and goes to the dashboard. Find out if it goes to a "Batt" terminal on the headlight switch first or goes to "Batt" terminal on ignition switch. Whichever one that wire land upon, double-lug that terminal for the power lead on your volt-meter, that way you will read actual full amount of battery voltage available at the battery.. . .
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Quote:
Originally Posted by miker98038
6 or 12 volt, I like the voltmeter on the run or accessory position on the key. That way its not a continuous draw, even if not much. Either way, if it's not on a fused wire, fuse the hot side as close as possible to the connection. ...
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Yes, a fuse in the power wire to the voltmeter is highly recommended, and if the power wire for the meter is connected to one of the large "battery" wires, yes the meter will always be on, draining the battery when the car is parked.