IF you don’t have the theory of everything that you are going to need here I explain step by step everything that you need in order to start working in your car. Later I ll be working on my KIA Sedona 2005 ex, with a stereo Kenwood DDX23BT.

2005 Kia Sedona Stereo Wiring Information
Radio Battery Constant 12v+ Wire: Yellow/Black
Radio Accessory Switched 12v+ Wire: Yellow
Radio Ground Wire: Black
Radio Illumination Wire: Red/Black
Left Front Speaker Positive Wire (+): Green/Black
Left Front Speaker Negative Wire (-): Green/Yellow
Right Front Speaker Positive Wire (+): Yellow/Black
Right Front Speaker Negative Wire (-): White/Red
Left Rear Speaker Positive Wire (+): Violet
Left Rear Speaker Negative Wire (-): Green
Right Rear Speaker Positive Wire (+): Blue
Right Rear Speaker Negative Wire (-): White/Green