Enter the secret code as follows pausing no more than 15 seconds between steps:

1. Turn the ignition to the ACCESSORY or RUN position.
2. Turn the radio OFF.
3. Press the number 1 and 4 push buttons at the same time. Hold the number 1 and 4 push buttons down until SEC appears on the VF display.
4. Press MN.

000 will appear on the display.

5. Press MN again until the last two digits agree with the last two digits of the secret code.
6. Press HR until the first one or two digits agree with the first one or two digits of the secret code.
7. Press AM/FM after confirming that the display code matches the secret code. "- - -" appears on the display indicating that the radio is no longer secured.

SEC appears if the code is incorrectly entered. The radio will remain secured until the correct code is entered.

When battery power is supplied to a secured radio, the radio will not turn ON and LOC will appear on the display.