I have a 2003 Lexus GX470 with Nav/Mark Levinson. I had Bestbuy install the Tesla style unit and in general most things work and I have customized with Carwebguru and Car Launcher, but a few things do not work so looking for ideas.
1. The screen buttons for temperature do not work. The physical buttons work and I can adjust the fan speed and the air position from the screen, but when I click on the button temp buttons it opens the climate control screen but nothing works when you press the + / - or up/down buttons. Certain things like the air recirculation also work on the screen, but auto, defrost do not. So seems strange that some things do work while others do not.
2. There is no OBD info displayed in the stock theme where you can show the speed and RPM. Is there a cable that needs to be connected or do you NEED a separate OBD reader and plug that into the port? I understand a wifi version is required, so if it is connected via wifi does that impact the ability to get data to the head unit?
3. I can't get iphone mirroring to work with an iPhone 8 or 8 plus with iOS 12. I can get it to work on an iPhone 5c running iOS 10. I also tried my newer iPad with iOS 12 and it did not work. I see a circle with 3 dots so it is connected, and a gray screen may show briefly, but most of the time just a black screen with the circle/dots. So it is connected but not projecting the display. The 5C showed it very quickly. So seems like an iOS 12 issue?
4. On one of the themes where is a pitch and roll with compass. the compass is showing almost the opposite of the true direction and so it seems like it needs calibration but not sure how to do this given the unit is in the dash.... Ideas on compass calibration? I think the same issue for the compass with Carwebguru too....