You can just use the screen for infotainment and satnav though. I already have a screen showing what radio station is playing, and one on the dash telling me w

You can just use the screen for infotainment and satnav though. I already have a screen showing what radio station is playing, and one on the dash telling me where to go. If a screen is required for a backup camera, just combine it. If I'm reversing I probably don't need the satnav anyway, whereas if I'm reversing or using satnav I probably do need other functions which just means you need an even bigger screen so you can fit everything on.