car stereo wiring

That is how I have it wired now using one of the grey and one of the green for left and right and it has a lot of background noise from the car. then it quits but the lights are still on the stereo, and it does have a inline fuse for the unit which has not blown.

what I mean is run one of the colored speakers wire to the positive terminal of your speaker....and from the negative terminal of the speaker run a wire directly to the ground on your head unit..

if in fact it is a common ground stereo it will either not work or it will sound extreamly fuzzy with alot of noise or cut in and out or something along those lines if you do not have the negative terminal on your speaker grounded to a chassis ground or the ground at the stereo power/ground connections ground.

most stereos pick up there ground either through the antenna plug in or through a bolted chassis ground but a few different stereos used common grounds where the ground connection used for power was strictly used as a ground for power and was not associated with the speakers.

so if it is a common ground set up....and you have 4 speaker wires....there job is only to output power to the positive side terminal of each speaker they are connected to and you have to manually ground the second (negative terminal) seperatley.

hope that helps