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Each speaker has different colors from every other speaker. Which speaker do you need? Each speaker has different colors from every other speaker. Which speaker do you need?
The red wire and terminal on a 2008 Honda Civic are the positive wires for the battery. The black wires and terminal is the negative battery cable.
grey
To find your speaker wires, check your owners manual. You should find a diagram with the location and color of your speaker wires.
Other things that speaker wires can be used for is power transmission. Speaker wires have negative and positive glued together in the insulation, it isn't intended for this purpose but can work.
Ussually the speaker wires coming out of the back of the radio itself are green, purple, white, and grey.
There is no ground for any of the speakers in a car. You will find to wires that go to the speaker but NEVER have the speaker wires touch any body metal. If you tie any of the speaker wires to ground you will short out the amplifier in the radio. On Ford vehicles the radio outputs are what they call Bridged Tied Loads. The speaker wires are not referenced to ground or battery. If you wish to find out the phasing of the speaker just put a 9 volt battery across the speaker wires and the speaker cone will either advance or retrack. Do this to all the speakers and note what color wir was on the 9 volt battery terminal
The voltage in speaker wire is too small to cause harm. Plug the two wires in. If the speakers work the wires are correct. If the speaker doesn't work try them the other way. ANSWER voltage does not cause harm no matter how high. amperage is what causes harm. speakers will work like a light bulb either way. positive to negative or negative to positive. with sub-woofer you can tell if it is right, the sub should pull inward on deep base . I believe cavalier rear speakers are hooked in series positive in one speaker, negative of that speaker to positive of the other speaker, and neg of that speaker back to stereo
stock wire harness speaker wires are always Gray, White< purple< green
you have to cut the wires and use the solid colors not the wires with strips left speaker is yellow and brown right speaker blue and green
two wires are subwoofer output negative and two wires are positive
red is positive and black is neutral...if the wires are red and black.