Thanks for your reply!!
No not changing the player as im quite happy with it and the changer etc. But it is asking for a code and not accepting the one we have in the manual, so my husband wants to take it out to check that the Serial No. on the stereo itself matches the one in the manual. If it doesnt then we know the only option is to pay SEAT to de-code it for us. Trying to save a bit of cash if we can basically.