We may have found other answers which could help you.
Click here for Serial Battery Radio Help
How do I wire a CD multichanger to a header unit in an MG?
My CD players keeps skipping?
4500 RDS eon code needed?
How can I fix the cd tray on a Kenwood DP 492 player?
is it possible to mend the LED on the front of the radio?
kenwood dpx 501u display fault?