I got no answer with this post a few days ago:
Being late to the game I only have a DCS Remote Commander and a DCS WiFi Explorer and neither of those will activate the station stop sounds for my PS3 subway set.
I pre-ordered the new WTIU awhile ago and am waiting for one like everyone else, but that question is not answered. The only thing I see in the description is:
Passenger Station/Freight Yard Proto-Effect Announcements
Not the same as the subway stop chain sound files (TAS)
Does anyone know the answer?