maylar 10+ year member
Electrical Weenie
Sorry dude. Audio is AC. Your voltmeter won't display polarity when measuring AC because the polarity is always changing (alternating).Originally posted by marcopolo The easiest way to determine + and - on your stock wires is to connect some voltmeter to it. Then run sum tunes and connect the voltmeter to the wires. You'r display should show either +xx.xx Volts or -xx.xx Volts. ...