Hi Phil I looked into the satnav thing & when the phone route , I now have a black N95 nokia , Satnav & gps build in , you should be able bluetooth satnav voice thro' the radio just as a hand free setup , going this way i just have one item to carry around , for me its my camera (5 meg) ,phone, mp3, mp4, internet TV , pda & satnav on foot or in the car. Also today i saw a 7" touch screen satnav in Halfords for £399.00 but it does not play dvds ,Not sure what make it was .

Good luck

Andy