I figured I would share to help other people. Since day one of having my TRX there has been a chirping / squeaking noise. It sounds like a bad belt or bad pully and per the thread many others have experienced this. My noise happened less or not at all when in Park or Neutral. but when in Drive or Reverse it got loud, once driving even just up my driveway slowly it would stop. It's rather annoying for an expensive truck.
I was finally able to bring it back to the dealer where I purchased it and had a full look over by the service manager and top Ram tech, long and short is this is a normal sound that is coming from the exhaust, there is actually a bulletin on this noise which they showed me. They also had a newer Charger with Hellcat engine in for service and they put it on a lift, it has the same exact sound. I guess it is less noticeable since the Charger is lower to the ground, but on the lift it is very noticeable. I guess because TRX sits higher, the ground doesn't drown out the sound. Seems legit to me???