While you wait for answers, we may have found some information which could help you.
Click here for Working Cd OpenProtect keeps coming up on my in-car cd player can you help?
How can I fix my Kenwood Radio?
wiring diagram for kenwood car cd kdc-309a?
Please give code for my Kenwood?
unlock kdc-mp428?
How to fix ATT error message on Kenwood car stereo?