How to Wire an Automotive AMP Gauge
- 1). Pick a location on or under your dash that will be comfortably visible while you are driving. Use the drill motor and appropriate bit to drill mounting holes per the manufacturer's instructions.
- 2
Typical car wiring harnesspower wiring image by Aleksandr Ugorenkov from Fotolia.com
Using the wiring diagram and a 12-volt tester, locate the positive wire between the ignition switch and the battery. Test with the ignition key on and off to see if you have the correct wire. If the power is always on despite the switch position, you have the wrong wire. - 3). Disconnect the negative cable from the battery. Use the wire cutter to split the wire you located in the previous step. Prepare solderless terminals to fit your gauge and crimp them to the wires. Connect the wires securely to the gauge. Reconnect the battery cable.
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