I paid like $5 extra to upgrade from the buygpsnow free Arkon vent mount to a suction cup (windshield) mount. Much better IMO... The GlobalSat BT338 is a "match made in Heaven" for the 6700 and works great, even in the back seat of a car where my Blue Logger would lose its fix. Got both for $114 shipped--highly satisfied.

Todd/Indy