360 View Upgrade from Stock?

I really regret not having a 360 view as a feature. I'm thinking of getting the Sony xav-9500es Head Unit for my 23 TRD OR. If I could find the cameras, both front and two side mirror ones, is it possible to upgrade the Taco to have this if I also upgraded the head unit?

 

Not using the OEM ones you don't.
Retrofitting the Sony cams into the housing, probably.

 

Also, Sony has input for 3 cameras, not 4.

It would required some more hardware added to the install. Like a relay with switch to select rear or front camera input. Then you'd have the 4 cameras. Not sure about being able to get a Panoramic view with the Sony head unit.