You star! seven squid on fleabay for a fully wired lead, nice one! As for the firmware, I'll take a look at mine when I get back to the car. If it does start looking like your unit has out of date firmware, then it might be worth heading over to http://vwnavi.com/forum.php. They seem to have a bit of info about upgrading firmware. I don't know the process, and there is a possibility that if you succeed you might be greeted with a VW badge instead of a SEAT one, but it's worth a look.