Thanks chaps as ever for the assistance. Although I am getting there with installing them, the actual functionality is still new to me. I've also managed to pick up a Mk4 at a very reasonable price.
Telephone isn't a massive issue for me, as if it was synched in, then people would expect me to answer!
I'm interested in this cunning plan of yours though Duncan, let me know if you need a guinea pig at a nano next year!