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Which Color Wire Is Positive And Negative. Is silver wire positive or negative? Yellow is positive, blue is negative.
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The positive wire for these systems is red and the negative wire is black. Every speaker wire will have an indicator to tell them apart, such as color. Black wires identify negative or hot wires.
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However, most speaker wires don't do colors. Good news is, with speakers it doesn't really matter which one you choose as your positive and which as your negative, just so long as you are consistent. Remove some of the plastic shielding at the end of the wires to expose enough copper. Green is also for the data, but as the negative wire.