Alpine A110 mount for CarPlay/Android Auto device

Who is this for?This is a way to securely mount a portable CarPlay/Android Auto device above the existing infotainment screen in an Alpine A110 car. Print it out, stick a backing plate to your device, screw in a mounting plate to existing bolt holes in the car and slot the parts together. I printed mine in ABS and in ASA. It might work in PETG or PLA but I haven't tried.Why do this?I have a 2018 Alpine A110 Premiere Edition. It's a nice car but the infotainment system is dated and doesn't support CarPlay, though it has a nice vehicle data view with charts and graphs. Note that more recent models of this car have got CarPlay natively, so this affects earlier vehicles. I use Google Maps and Apple Maps while driving. I used to keep my phone in view on a mount but this was distracting, so I decided instead to try a portable CarPlay / Android Auto unit. I wanted a sturdy, high quality result that is reversible in case I ever sell the car. I found a well-reviewed unit, which feel