Cant help with the fitting, but I insisted my recent new car was upgraded to Apple CarPlay, but had never actually used it. It's really disappointing and looks a little child like. I prefer to use my iphone 12 ProMax (ie large screen) on a cradle.
Also, CarPlay mutes all incoming messages so you dont see / cant read them until you stop. Not sure if this can be over-ridden, and seems safe, but I do like to see the notifications pop up on my phone screen, so I know if I need to pull over and read them (urgent stuff).