I use a Pro Clip right of center vent mount with a kindle for MHD. I opted for a Scosche XL magnet instead of a specific phone holder so I could switch between my phone or my tablet depending on what I need that day.
https://www.proclipusa.com/vehicle/d...series-m3/2009
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2009 335i xDrive AT / 177k+ miles
PSP 750ic / Fuel-It! Stage 1 / BMS CP / Sutphin Tuning / RFP E50
11.61 @ 117.5
New setup; Covid 19Ts on RFP 93 + ARM inlets, dp, VTT cp and PSP outlets