Hey guys, I just purchased a 1991 Delco CD player to install in my '91 Camaro. I have the unlock code, and I was trying to unlock it, I messed up by incorrectly entering the unlock code. Now any buttons I press to re-attempt, the radio display shows InOp instead of the 3 zero (000). Does anyone know how to unlock this thing. I appreciate your feedback.

disconnect the battery for about ten minutes and then reconnect it. During the course of doing these steps, do not pause more than 15 seconds between steps.

1. turn ignition to on.

2. press "SET" and "000" appears on the display..

3. press "SEEK" and hold until first digit of the secret code appears.

4. press "TUNE" and hold until the second and third digits appear.

5. press "AM-FM" and "000" appears on the display.

6. press "TUNE" and hold untill the fourth digit of your secret code appears.

7. press "TUNE" and hold until the fifth and sixth digits of code appears.

8. press "AM-FM" ("SEC" appears and radio can be turned on) radio stays in secured mode.

Hope this helps you.