Hello I would like to suggest a feature that would make your driving experience better than it is now. I’m suggesting in-train automated announcements which play on your train that you setup before you start your service. This would be a great feature if added!
The Passenger Information System (PIS) functionality was supposed to include on-train announcements amongst other stuff. From DTG Jay's latest comments it appears it's not currently being worked on. Apparently it's really difficult and complex so maybe it might turn up in a year or so full of bugs that QA completely missed.
I seem to remember that some 3rd party routes or train sets for TSxxxx include in-train passenger announcements. Even better, some of the routes available at Trainsim.IT included station announcements; unfortunately, nothing there has been updated for a long time.