Hi, I have an old Phillips Car Radio Cassette player Model RC 399, it's at least seven years old but works well. I would like to fit this to another vehicle. I am happy to purchase a £12.50p wiring adapter for the changeover but am reluctant to remove the radio as nowhere in my original paperwork can I find any mention of the usual four digit security code number one needs to reset a car radio after disconnecting from the mains supply. In fact in my users' manual it makes no mention of this procedure. Could it be that as the unit has a detachable security panel, then a four digit security reset code is not a feature of this model? The Phillips Car Systems Security Card that came with it has the I/D code PH399FX90666669. Any advice welcome. Colin martin