I bought a vent mount like this one http://www.ebay.com/itm/Car-Vehicle-GPS-Air-Vent-Mount-Holder-Set-for-Garmin-Nuvi-/131218333168?pt=GPS_Holders_Mounts&hash=item1e8d38ddf0then glued in a couple strips of bicycle inner tube in the prongs so that it wont scratch my vents. Does not move ever.