Well I have used many different rear view setups over the last few years. In 3 of our trucks I run the “zero edge” rearview
Mirror with built in front and rear cameras it is also a audio/video recording and playback device… I love them
Next would be our other two trucks we use double din atoto head units (android based stereo head unit) with integrated gps and rear camera
The third option, very good for four wheeling and especially in my wife’s FJ with huge blind spots, is the birds eye 360 degree camera system that has 4 cameras and paints you a bird eye picture in real time of what is happening on all sides of your vehicle
Super *****in for four wheeling. I put one of these in the 07 ranger build
Here is the rear view mirror on amazon, I love these things! Cheap enough and no real mods needed to install (reversible easily it just clamps on)
Here is one on amazon there are many brands and models. The ones I use were called “zeroedge” they have changed the name since then
WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera, 2160P Full HD Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Free 32GB Card & GPS
https://a.co/d/cDbBbnq