Found this on another site. Might be helpful for everyone.

I'm installing a radio/mp3 player for the first time and I have a really hard time to read the diagram above.

Could someone help me with the meaning of "Car Radio Accessory Switched 12v+ Wire: Blue"? Does it mean that this is the ignition wire (ACC)? If not, which one would be the ignition wire? I matched up pretty much all the others wires with my new player.. I think.

Thanks,
Michael

Car Radio Battery Constant 12v+ Wire: Pink
Car Radio Accessory Switched 12v+ Wire: Blue
Car Radio Ground Wire: Gray
Car Radio Illumination Wire: Red/Blue
Car Stereo Dimmer Wire: Red/Yellow
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5 1/4?
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Blue
Left Front Speaker Negative Wire (-): Yellow
Right Front Speaker Positive Wire (+): Green
Right Front Speaker Negative Wire (-): Gray
Car Audio Rear Speakers Size: 5 1/4?
Car Audio Rear Speakers Location: Roof Mount
Left Rear Speaker Positive Wire (+): Orange
Left Rear Speaker Negative Wire (-): White
Right Rear Speaker Positive Wire (+): Orange/Blue
Right Rear Speaker Negative Wire (-): Orange/White