The yellow wire goes to constant power. It provides memory function and powers the internal amplifier.
Red wire goes to a switched ignition source, so the radio goes on and off with the key.
Black is ground.
Green, white, gray and purple pairs are the speaker wires. Negative wires will have a black stripe, positives will be the solid color.
White is left front
Gray is right front
Green is left rear
Purple is right rear
Blue is a 12V output to turn on an external amplifier.
Orange is illumination, you can connect it to an existing lighting wire if you want to be able to dim the display, or just to the red wire if you want the display on full bright with the ignition.
