AUDIO AND ANTENNA — Radio — Anti-Theft System
EL-121component photoClassic Nissan/Clarion 4-digit anti-theft code system — radio locks the moment battery ground is disconnected, even briefly. This is a frequent customer complaint after battery replacement on K11s with the OEM head unit. Owner needs the code (on a wallet card from new) to re-activate.
Radio
ANTI-THEFT SYSTEM
NOTE
By using a personal 4-digit code known only to the vehicle owner, the possibility of the audio unit being stolen is effectively reduced, because without the code the unit can not be activated. When in normal use, the unit is unlocked and accessible in the usual way.
If however, someone attempts to remove the unit or the ground cable is disconnected from the battery, the Anti-theft system activates and the unit "locks". The only way it can be unlocked is by entering a personal code number known only by the owner.
NOTE
• With the ignition switch off, a flashing LED indicates that the anti-theft system is activated.
• For details of setting up the radio activation and tuning, refer to the audio unit manufacturer's operation booklet and the owner's manual.