My Model 3 did not come with charging cables. The cables for the mounts have a specific (90º) format so the phone slips into the plug easily.
I designed this simple model to allow for a standard lightning cable (old USB male model) to fit snugly into the mount, allowing it to fit properly in the Tesla Model 3 charging slot.
It works fine for an iPhone with or without casing!
The newer USB-c cables are a bit different, could need modification.

Prusa

i3 MK2.5

No

No

0.20

100%

Used Tinkercad, a few measurements and trial/error