Android Auto Mirroring 2012 C250 coupe
 

I am looking for a unit where I can either mirror my Android phone or Android auto to my 2012 Mercedes C250 Coupe. I'm not looking for a huge replacement of course but I'm a bit confused. There seems to be a small box that you can buy that will allow you to hook your phone up via USB in mirror Android auto to the car. Does anybody know how to do this? What box would it be that is needed?