They make touchscreen smart mirrors that easily mount on top of your OEM rearview mirror. Half the display shows a rear camera that you mount by your license plate, this functions as your mirror. The other half of the display shows wireless android auto or carplay, so you can browse music and use Google maps nav. Phone connects to Bluetooth of your car, so all steering wheel buttons work. Mine was about $120 and I love it. No need to mess with OEM mmi and no janky screen mounted somewhere that either blocks your OEM screen or awkward position. Very clean and super easy to install and use. The view of navigation is in a better spot than looking down at your mmi screen.
