Figured I’d chime in here, since this has been done for years on the 4th gens, and will be the same on the 5th gens. All you need to do is take a female RCA pigtail-
Crimp these terminals onto the red and black wires-
https://www.mouser.com/ProductDetail/TE-Connectivity/638551-2?qs=/ha2pyFadui2KO4i8tuEMRmwe3qqDO4dcOxrTo7CGec4q0rAKYyNkA==&tetid=MuZSUWoENz
Insert the red wire into pin 24 on the big radio connector, and insert the black wire into pin 25.
Then use AlfaOBD and set VehConfig 1 CHMSL camera to YES. You’ll now have the cargo cam soft key active on the radio controls screen, and you can plug any aftermarket camera into the pigtail on the radio. For mounting, either come up with a clever solution, or buy the “RAM” grille nameplate that houses the front camera for the surround view equipped trucks. Just choose a camera that can be fabricated into the front camera mount. Supply the camera with fused ignition power, and ground, and you’re done.