Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2412721.

Print in ABS, PETG, or other high temp filaments. Regular PLA will warp quickly in the heat.

The smaller piece screws into the iPhone dock. Use M3 screws that are just the right length. You should not be able to feel the screws where the iPhone is. Sorry, I don't have the screws handy, I will update when I can.

This will slip into the slot under the ash tray. It will allow your phone to sit horizontal, with access to the volume buttons, and it will allow the phone to sit vertically while charging. I keep a second lightning cable with velcro zip tied on next to the dock so I can charge when horizontal or when the phone is in my hand.