2003 Kia Optima Stereo Wiring Information
Radio Battery Constant 12v+ Wire: Orange
Radio Accessory Switched 12v+ Wire: Yellow
Radio Ground Wire: Black/White
Radio Illumination Wire: Brown/White
Stereo Dimmer Wire: Gray
Stereo Antenna Trigger Wire: Gray
Stereo Amp Trigger Wire: Green
Left Front Speaker Positive Wire (+): Yellow
Left Front Speaker Negative Wire (-): Black
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): Red
Left Rear Speaker Positive Wire (+): White
Left Rear Speaker Negative Wire (-): Brown
Right Rear Speaker Positive Wire (+): Orange
Right Rear Speaker Negative Wire (-): Green
The following information is currently not available:
Audio Front Speakers Size
Audio Rear Speakers Size
*If you know any of the above or any other missing information please use the comment box below to notify us.