How to Install an Ammeter in Your Car: Step-by-Step Instructions and Safety Tips

How to Install an Ammeter or Volt Gauge in Your Car: Step-by-Step Instructions with Safety Tips. The video provides step-by-step instructions for installing two different types of gauges, an ammeter and a voltmeter, into your car's electrical system. Key safety tips include wearing eye protection, disconnecting the negative battery cable, and using fuses to protect the wiring. The ammeter installation involves crimping and soldering terminal lugs to 10 gauge or better wire, connecting one wire to the positive battery cable and the other to the alternator or another wire as specified in the owner's manual, and checking for hot spots with a multimeter after starting the engine. The voltmeter installation requires mounting the gauge in a 2 1/16 inch hole, attaching the black wire to an engine ground, the red wire to a 12-volt terminal, and the white wire to the dash lighting panel before reconnecting the negative battery cable.