I also have a 2018 TRD ORP. For sh*ts and giggles, I just called my local Toyota dealership and they are not aware of a carplay upgrade to the existing system. Doesn't mean it doesn't exist, but they sure as hell don't know anything about it.
I Finally got a call back from my service advisor. Dude is clueless like me, just asked me if I am happy with it. I am like sure but I need to know more info about it because people on the 4 runner forum wants to know. He said the tech is busy and can’t speak to me right now.
At this point, I am assuming it’s an aftermarket module since nobody else has heard of this and I am getting the run around. Sorry guys.