Go to this site, there is a small charge but the dealer wants more. the codes are not published for free because each is unique to the car trhe radio is installed in.
http://www.delcolockcodes.com/
SOURCE: need unlock code for 2003 buick century car radio
You will need to take the car to a dealership to have the service department unlock the radio for you. They have a special code to unlock the radio and then you are required to change the code to one that you will remember. An appointment should not be needed because this takes about 5 minutes. I do not remember the code, sorry.
SOURCE: I have a 2002 Buick Rendezvous CX with a locked radio.
what you need to do is pull the radio out and write down the serial number then call the dealer for the code. they may charge you 15-25 bucks but that will save you some money
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You need someone with a GM Tech2 to setup your radio. there are no codes you can enter.
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