In addition I have a screw-joint socket (HR Richter 1704/66 4QuickFIX) bought with 4 claws. The screws for attaching were the joint socket thereby. The holes I drilled (on PROCLIB are no pre-drilled holes).
The holder of my navigation device from Medion can easily be mounted on the articulation socket and remove quickly when needed. The base can be swiveled in all directions, the navigation device is well in sight.
For the angled backwards power connector (on my navigation device bottom right) is sufficient space.
Conclusion: this combination I can only recommend this type of vehicle, and as someone else has written, no more pad marks on the windscreen :-)