3rd brake light replacement with camera

Hi everyone,
I need your help if at all possible. I've seen some newer trucks that come with a 3rd brake light camera and was wondering if anyone know where to get one for a 1st gen. My goal is to have it as my rearview mirror display. Reasoning being, my two kiddos use large car seats and they block the view. I already have a tailgate reversing camera but I would really like to be able to see the cargo area (when needed) while using my rearview "mirror". Does anyone know if anyone companies make them? thanks in advance

 

You can mount the cameras that come with the mirror screen kits anywhere.

 

I just ordered a rear view mirror with camera and backup cam for mine. I'm sure its typical Chinesium quality since it was only $30. I don't need 48K UQSGSHJHD as long as its good enough to show I had the green or at least the general shape of the ass's car that hit me and ran. I already have a backup cam in the tailgate handle so this cheaper one is going on the license plate.

This one.

https://www.walmart.com/ip/1080P-Re...en/1758307866?athbdg=L1700&from=searchResults