Phone Cup Holder Dock

My GPS navigation software is on my phone. Everything is hands free for me now but sometimes I need to glance at the phone screen when the Navigator voice doesn't make sense with what I'm seeing on the road ahead of me. I angled the phone slightly so the screen can be facing up at me.

There are 3 main parts:
Insert - varying diameters to accommodate different vehicle cup holders
Arm - One size fits all
Dock - Currently there is only one dock designed for iPhone 5 in an Urban Armor Gea