yellow
Yellow
It is for the dial light or the statiod memory
The red wire is the positive wire. The black wire is the ground wire. The green and yellow wires are the speaker wires. The white wire is the auxiliary wire.
your ground wire for the stereo is connected to the ignition wire of the car
red wire= main power/postive yellow wire=main power/memory black wire=ground wire/negative
There is a wire to the stereo that has power all the time ( straight to battery ) so that it retains its memory. This wire is disconnected, broken, or faulted somewhere. If it is an aftermarket stereo it might never have been connected. In the stereo wiring harness there should be one wire that has power with the ignition off, that is the one it will connect to for memory. If there is not one start checking fuses and wire continuity.
the ACC wire from the stereo is connected to constant power (+12V)
The correct GAUGE wire is 28 for a car stereo.
2 to each speaker, 1 ground, 1 keyed power, 1 illumination or memory.
yes, it is possible
Turn your radio off before you shut your car off.
The illumination wire on a car stereo is meant for the brightness on the display. It is used to adjust the brightness of the display for seeing it during night hours.