Originally Posted by
whatinthe
Im pretty sure that the original owner sets that upon purchase. If there was just one code people wudnt have any problem stealing it. Just go buy a Pioneer CD player.
You are wrong.
The radio code is set at the factory and logged to the serial number on the radio and the VIN of the car.
To the OP: Check the owner's manual first, the security codes are printed on a card that often is stuck inside the manual.
If you can't find the security code card, the dealer can look it up. Remove the radio, get a copy of your registration with the car's VIN and go to a dealer. They can look up the security code on their system.