I have had my 05 QX in the dealer 6 times now , the satellite radio that they added ( same as factory system) keeps cutting out (says aquiring signal) they said that they changed the Sirius main unit twice and the antenna twice. My antenna is mounted to the right of my rear view mirror on the inside of the glass, should I have them put it outside. on a 2 hour drive from sandiego my sat will cut out up to 7 times excluding the normal cutting out under overpasses.sometimes it even just goes out while I am parked listing to it. any advice would be appreciated.