Negative and positive

victor j New member Username: Lord_victor Post Number: 4 Registered: Apr-07	Posted on Monday, May 07, 2007 - 01:05 GMT m having trouble determining which wire is positive and negative in my car the wiring is all weird colors for the speakers how can i figure this out?
I- Malik Silver Member Username: Imalik SD2.5ED9.1=Boom, New Jersey Audioque...N... Post Number: 275 Registered: May-06	Posted on Monday, May 07, 2007 - 19:38 GMT Get a light tester, ground it, touch each wire, the + will light up