Can we discuss the unit? What brand display do you have and does it do everything you need?
I am currently using Carpuride 2023 wide screen 10.2inch model (though layout and screen-size not important). I bought the system to wirelessly connect to my phone for Android Auto. It does that and does it very fast. So far, that's great. The unit also has a very bright crisp display, also great. Here's where the unit has issues.
1. My steering wheel music controls don't work (can't choose next song, but i can control volume).
2. Phone calls are very quiet. I have to crank up the volume to hear the other person. I have tried various settings to try to figure this out, but still can't.
3. The auto day/night mode does not work. I have to manually go to settings, switch from auto to night mode at night. The system always starts with day mode and does not auto switch (here, I'm not talking about auto dimming - that works fine, not great, but fine. Screen gets really bright when stopped at lights). This may be an android auto issue though.
4. Phone gets hot and loses battery when wirelessly connected to this unit (again, may be an android auto issue and not this system issue). This is not a deal breaker, always can charge phone in the car).
Does anybody use a wireless head unit for carplay/android auto that solves for these issues?