Audio Systems: car stereo color code, car stereo amplifier, toyota corrola

Question
I have factory stereo from 2000 toyota corrola. Mod#86120-04090  ref#cq-Ls7710x Iwould like the color code of the two wire plug at the back of unit. Also can you tell me why this unit has a button marked CD, another marked DISC But does not have a place to insert a CD? I hope with the correct color code I can hook this unit up in the cabin of my boat.      Thanks  Dave

Answer
Don't know about the radio unit, but here is the color code scheme for the car - and maybe you can work backwards to the radio you have:

2000 Toyota Corolla Car Radio Stereo Audio Wiring Diagram

Car Radio Constant 12v+ Wire: Blue/Yellow
Car Radio Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Pink
Left Front Speaker Negative Wire (-): Violet
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Blue
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Red
Right Rear Speaker Negative Wire (-): White


The radios from 2000 generally had provisions for addition of a changer.  The buttons are for when the cd player is added to the system.

Best wishes.