[murcod]

I'd suggest reading this thread http://www.kugaownersclub.co.uk/forum/sync1-screen-failure_topic15344_page1.html

There's a lot of work and parts to buy for a Sync 3 upgrade and then you're locked into purchasing expensive maps off Ford. If you replace your Sync with an Android based head unit your application options are vast and you can choose what sat nav software you want to use.