Maybe it's just me, but I never use the center vents...leave it on windshield and feet. Better half doesn't like air blowing from mid-level vents. Oddly, but good IMO, is that air still comes from the mid-level vent to the left of the steering wheel. I can shut this off with vent slide, or use it as needed for A/C or heat on myself. So I don't have the problem with the vent mount blocking air flow.Another problem with the vent mount is if it's winter and you have the heat on it gets the phone really hot. Not good for it. Go to E-Bay and pick up one of the magnetic mount units. Then you can mount it pretty much anywhere . Only about $6.