Help, not used my sat nav since i got the car ( 05 quattro ) had to go to north london this morning so thought i would give it a try, after fifteen minuets of faffing about i don't know how but i got it working but with no voice guidence, it got me to my destination though, tried to set it again for the return journey but failed miserably, is there an idiots guide for setting up ? tried looking through the audi nav manual but it's as complicated to me as flying Concorde, also would there be an updated dvd & can i get one somewhere other than an Audi stealership