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This is the info i found .
The audio security system is activated whenever the audio system circuit is disconnected from the battery. A 4-digit security code must be entered for the audio system to resume functioning. The security code is stamped on a card located in the vehicle, usually in the glove box. The following security code entering procedure must be used to deactivate the audio security system:
If the wrong code is entered, ERR will briefly appear on the display. After this, CODE will appear, and the code entering procedure can be performed once again. If the correct code is not entered within 10 minutes, the radio should be disconnected from the battery to reset the audio system. After connecting the battery, repeat the code entering procedure.
Let me know if it helps.
I did not know you had already tried that.
When you turn the ignition on what does the radio read?
Does it read ERR for a few seconds?
If so disconnect the battery for a few minuets, reconnect it then see what it says.
Does it now give you 4 digit's?
Let me know what you come up with.
I never ran into that situation before. All the info i have you have to have the code to unlock it. I will do some more research for you and if i find anything i will get back to you. In the meantime i will opt out. Someone else may have a answer faster for you
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