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rdd225566
rdd225566 8/25/2010
1987 GMC R1500 Sierra Classic 8Cyl5.0L - Body & Interior
how do you hook up under dash voltmeter gauge
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  • Bobby
    Bobby 8/25/2010
    if it is an aftermarket gauge it should come with an installation guide or contact the manufacturer for one. but typically you have to hook a wire up to the alternator wires and run it into the cabin and mount the gauage. as to which wires again i would contact the manufacturer of the gauge
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