red is usually the hot wire.
red
a
The Toyota tundra fuel pump hot wire will be the color red. The fuel pump is located on the front of the fuel tank. The hot wire will be inside of a wiring harness.
Green is the hot wire for my 2004 Chevy Colorado.
Don't know the color of the wire but you will just have to use a test light to see what wire is hot to the radio.
What is color for hot wire on a 1996 mazda b2300 truck for radio
black
The red wire is the hot wire. The black wire is the ground wire. The green wire is the speaker wire. The white wire is the auxiliary wire.
In the US of A, it's supposed to be black.
pink with black marks
Automotive positive and negative wiring colors can be any color, blakc can be hot, white etc, you need a wiring diagram