I made the classic mistake of thinking the radio code supplied with the car was correct...It wasn't. After three attempts, not being exactly certain how to press the 'enter' key or even what the 'enter' key was, I looked on the internet to find out what button to press to make the radio check the code, then after one more try, confirming the code was wrong, got the serial number of the radio after finding out how to find the serial number on the internet. At the same time I saw the adverts to get radio codes. I had a look at a couple of others but their web sites were awful, then I tried Radio Codes. A very simple web site with a quick result via e-mail and even more to the point the code worked ! Excellent job.