In 1989 I had a Golf GTI as a company car, this came fitted with a Panasonic radio cassette. The company I worked for paid for this to be upgraded to a removable one to prevent theft. This still didn't stop Croydon's Oiks from smashing the windows on a regular basis. After a couple of Rovers with cd changers under the passenger seat, I ordered a Golf GTI 16v in 1995. I upgraded the standard Sony radio cassette to a radio cd. This car came with an alarm, but it didn't stop the oiks from trying to steal the radio. I don't think they ever got away with the radio but my neighbours were fed up with the constant alarms.