mobile phone holder for BMW vehicles

As I bought my car there was an existing holder for a special mobile navigationsystem. The reasons for this project is simple: no more update for it! So I checked the possibilities to create a holder for my mobile phone and I disassembled the old one. After some measuring of the basic plate (picture 2 and 3) of the dashboard I started to design it in Fusion. The idea is to install two separated parts (you need only 4 countersunk screws with nuts M3 x 20 to fixed them together). The "bed" (I hope that the right word for it) is exchangeable. At the moment I created a version for a Samsung Galaxy S4 but it has some issues with the camera and the volume up button. Next version has an USB connector in the middle of the basic holder, and it's black. Update 2018-01-14: After some years I found the time to update this project with a bed for the Samsung Galaxy S6 Edge with a bumper like this: https://www.amazon.de/gp/product/B00SV635BG/ref=oh_aui_detailpage_o04_s01?ie=UTF8&language=en_GB&psc=1 Pictures will follow (It's hard to show the holder with the mobile phone if you have just one camera:-D )