EDGE
Registered Member
I just bought all new auto-meter gauges for water temp,trans-temp,oil pressure and a voltmeter.Each one has two wires for the little internal lights.Can I tie all of the black wires together and run them to a common ground and tie all of the white wires together and run them to a wire that is hot when my haedlights are on? That would mean that all four would have common ground and common power.They are all mechanical gauges except for the voltmeter if that makes any difference.