Radio Anti-Theft Feature (THEFTLOCK(R)) Unlocking

CAUTION: Allowing more than 15 seconds to elapse between each action in this procedure, will cause radio to automatically revert to time function.

Turn ignition switch to RUN position. Radio will display LOC.
Press MN. Radio will display "000".
Press MN again until last 2 digits agree with secret code.
Press HR until first 2 digits agree with secret code.
Press AM-FM after secret code has been confirmed. Radio will display "SEC", indicating radio is operable and secure. If wrong code has been entered 8 times, radio will display "INOP". Turn ignition switch to RUN position for one hour. There are only 3 attempts of entering correct secret code before "INOP" is displayed again.