Wireless charger mount from Basues is used. Her is link:
https://www.amazon.com/Baseus-Wireless-Charger-Clamping-Charging/dp/B07NTGVNBT/ref=sr_1_13?dchild=1&keywords=phone+car+holder+baseus&qid=1601751903&sr=8-13
V2:
In hot summer day, PLA tends to yield. So v2 has bolt hole for M3 bolts that increase the shear strength on the ball joint.