Print the grip part in TPU with 100% infill. 100% infill is required for a secure grip of the vent.
Print the holder, in ASA or PETG, with supports under the large flat inside surface of the holder. Supports are not required elsewhere. PLA is unsuitable as it will melt in a hot car.
Firmly push the grip part into the holder part from the front side of the holder until it snaps into place. Place an Apple MagSafe charger in the holder.
Mount on A/C vent blade.
The author marked this model as their own original creation.