That's good! You're 1 step closer. I also was lucky enough to find what I needed on Ebay recently.
Here are the part numbers I found for my :
2019 Ram Rebel
* 5YU493XRAF - Outer bezel w/ red trim for 8.4 radio
68292209AF - 8.4 Radio, single zone, Carplay, or
* 68428539AC - 8.4 Radio single zone, Carplay, w/ heated seats and wheel
68340283 - Center stack, single zone, or
* 68340284 - Center stack , single zone, w/ heated seats and wheel
I can confirm the numbers with ( * ) are correct and working in my 2019 Rebel 1500 w/ single zone, heated seats, wheel and Carplay.
I believe the others are correct, but I have not personally tried them. I have read this entire thread and many others to get to this point.
Hopefully this will save someone some time. Good luck, friends.