Upgrades to factory sat nav

[Rossg]

I have just become the proud owner of a late 2001 V5 Toledo and I am very very happy with it... However I would like to pump up the stereo on it and want to know my options. I have the factory fit sat nav system and will keep that as my head unit but the rest is up for changing. I saw this (http://www.seat.com/su/com/toledo/site/choices/accessories/sport/sound-kits/main.html) on www.seat.com but it doesn't seem available in the uk. I have modded my last few cars myself but I am getting lazy and would like to find somewhere to do the best job possible for me including some serious sound deadening.. all advice is of help !
Cheers

[alex.b]

Can you let me know the outcome I have sat nav in a cupra r and obvioulsy have to keep it as a head unit but would like to know what option are availbe,when I had car phone installed they found on the back on the unit a massive round 'din 'interface but they had never seen one before as i would like to run a dvd through but they were stumped