Rear speaker color code

2002 Alero four door.

Does anybody know the color code for the rear speaker wiring?

I've got a blue and green for the right, and a yellow and brown for the left. I need to know which ones are negative.

Thanks in advance for any helpful information.

yellow and blue are neg.

A handy tip to see which speaker leads are + or - is to use a 1.5volt battery with 2 wires taped to each end. if the speaker pops out you have the positive on the pos of the speaker. If it get sucked down (in) you have the polarity reversed. Then just look at the harness from the car to determine which wire is which.

A handy tip to see which speaker leads are + or - is to use a 1.5volt battery with 2 wires taped to each end. if the speaker pops out you have the positive on the pos of the speaker. If it get sucked down (in) you have the polarity reversed. Then just look at the harness from the car to determine which wire is which.



Never knew that... I always hook them up and turn the bass all the way up.. I can tell if one is on wrong or not by the way it sounds...