My 2003 radio still lock cant get it to unlock.

To unlock radio a 4-digit code is required.If there is no code then it can be retrieved from the dealer. The password/code can only be retrieved from service center or from the dealer of the unit. Because at the back of the unit there is a serial number mentioned and the password/code only can be retrieved from the serial number. Each and every device/unit has its own serial number so one serial number code/password will not work with other serial number code password. The service center or the dealer has the list of code for the serial number so as soon as you provide the serial number he will get the password/code
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