![]() The fact is that most radios need decoding for perfectly legitimate reasons and not because they have been stolen! Our company has been involved in the servicing and repairing of car stereo equipment for many years and we quickly realised the need to be able to decode a radio before it could be serviced. It is then that the problems arise, people entering wrong codes into the radio causing it to lock up etc. However, there is a downside in that people do tend to forget their code numbers, which does not usually present any problems at first until the car battery goes flat. The idea being that if the radio is stolen, it cannot be used unless the secret code is known, so there is not much point in stealing it in the first place. ![]() In the case of the security coded sets, originally pioneered by Philips, a special code number (a copy of which is contained inside a microchip within the radio) must be entered before the radio will operate. ![]() 1 JOULE ELECTRONICS / SECURITY CODED CAR RADIOS Many modern car stereo systems have built-in anti-theft facilities ranging from removable front panels and displays to security coding and even complete removal of the radio from its cage.
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