Just a quick question. Has anyone been able to sync their TomTom SatNav up with the Audi Bluetooth to play it's audio via the car speakers? My TomTom Go720 has an option to output audio via a "bluetooth hifi". Had a quick attempt last night with no success. Will give it a proper go tonight as I know the bluetooth discover mode on the Audi only lasts for a minute or 2 after ignition on.