Back in 2018, I designed this model for my 2009 VW GTi. It mounted in place of the stock 2 din stereo and allowed me to mount the Raspberry Pi 7" touch screen in its place (the original version - I think there is a new version out and don't know if that will fit). The Raspberry Pi gets mounted to the back of the screen. I also used a HiFiBerry DAC which fed into a standard car amp. Sparkfun's CANBUS dev board was used to tie in the steering wheel buttons (volume controls). A dock for a Nexus 6P was built into the model as well. The phone just slides into the slot just below the screen. Open Auto was used on the Raspberry Pi which provided the Android Auto host.

There are 4 parts to print. The touch screen mount, the left and right brackets, and the dock. The brackets and dock need small sections of support. The touch screen mount gets ironing on the top most layer to give it a smoother appearance. It should be printed in PETG or something else that can withstand the heat inside a car.

The two brackets will slide into place on the touch screen mount. You will need 4 nuts and bolts to secure them together. Use a locking nut or lock washers. The dock has an opening for a right angle USB-C plug. I designed it to be a snug fit for the cable I had. When inserted all the way, it should line up with the USB-C port on the phone. After that you can slide the dock into place to line up with the slot at the bottom of the touch screen mount. This just stays in place on its own. Now you can mount the brackets into the car. I believe I used the stock bolts that held in the original stereo.

Not sure if anyone will actually have any use for this, but figured someone out there may find it useful so I'm uploading it here!