Typically in 12v aftermarket equipment, Red is 12v positive (+) switched, Yellow is 12v constant and Black is negative (-) But there is no standard.
OEM (original equipment Manufacturer) Factory equipment uses different colors for different manufacturers. Red, Yellow and Black have no relationship to + or - and may or may not be power wires. Never wire anything without an installation wiring diagram.
The color codes for positive and negative speaker wires are typically red for positive and black for negative.
red is negative :( green is positive:)
Black is negative and Red is positive.
Black is negative, red is positive - if you've got something where your options are color and white, the white is your negative.
Positive is either red or has a "+" symbol.
positive is red negitive is black
If it is DC then red is positive and black is negative.
On a vehicle the red is positive (+) and the black is negative (-). If they are not color coded the cable connected to the starter is positive and the cable connected to the engine or chassis is negative.
The positive speaker wire is a solid color, your negative wire should have a stripe on it.
Positive is usually indicated by the color red or by a "+" symbol. Negative is indicated by black or by a "-" symbol.
Positive space and negative space
Positive + Negative = Negative Negative + Negative = Positive Positive + Positive = Positive Negative + Positive = Negative