Android Auto has an interface issue at certain display settings. Sometimes it wastes a huge amount of screen with navigation boxes too big and the black menu bar at the bottom but in most others it puts it on the right. 

This article relates to these issues; https://support.chigee.com/portal/en/kb/articles/why-can-t-i-change-the-position-of-the-menu-bar-in-android-auto-or-carplay It claims you cannot change the position, but that is not entirely true.

@Chigee It seems like the current config in the AIO5 just happens to be one of these problem DPI numbers causing the terrible UI sizes. You could add the option to change the resolution and DPI presented to the phone via settings. This would reduce the size of everything and improving the interface.  AA Wireless can do this in developer / advanced settings, so can Head Unit Reloaded and many others.  Please look into what can be done as software solutions no longer work since android 14 and this is a major distraction and waste of screen.