Thank you very much for your advice. How can I tell the difference between an i-bus and a MOST-bus ? The Vehicle is from 01/2002 and the Mkiv is from 06-02 (6590-6920 182-01). I have a VIN number for it and it won't take disks at all but it does take power. Do I need a code to unlock it ? if so how do I load the code ? Is is possible an ant-theft lock has ben activated so that it doesn't take disks ?