I had the same issue with my Mustang convertible. I have been using one from Amazon that works pretty good, but its weight can make the original mirror slowly tip down when going over bumps, and the really nice screen is so glossy that it can wash out when the top is down. Also, if you are older like me and use bifocals, the mirror is in the distance part of your glasses, but the image is only several inches away, since it is no longer a reflection, but a displayed image. It does have front and rear cameras with split screen capability, and on-screen replay via touchscreen controls.
https://smile.amazon.com/gp/product/B0855GMKMD/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1