which wire is positive and which one is negative? Talking about the blue and yellow wires. I'm trying to install some car speakers but don't know what color is positive or negative. :
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What would be the correct terminal in an LED controller for white, yellow, black and red wires? They aren't the standard bgr! So, does the black go to the'b' terminal? And so
How to Identify Positive & Negative Wires: AC, DC, & More
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