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Here's a decent looking/functional alternative head unit from Joying (8.8 inch screen, 4GB RAM, 64GB storage). It provides all the latest bells and whistles in a easy to install package, within a medium price range 350.
HD backup camera, 4G wireless SIM card option, 2.4 and 5Ghz wireless, etc.
Console buttons are easily accessible from either seat - it's just the angle of the pic that makes it look like they might be covered. Android Auto shown - works great.