The missus got an old model Tiguan recently but there is no built-in sat-nav. It does have Bluetooth etc but she finds the call quality poor. Can anyone recommend either a head unit with sat-nav and Bluetooth which looks OE , or a standalone sat-nav unit which could be permanently installed, so that there would be no visible leads? I spotted a Blaupunkt Philadelphia which looked good but sat-nav is an add on extra. Cheers.