I really enjoy the radio chatter in Sand Patch, although I think it should be louder. I would like this addition to other routes as well, as it really adds an element of realism. I've also noticed that none of the locomotives in TSW2 have any air compressor sounds. Sounds of passengers on the platform, nearby vehicle traffic and animals/birds, miscellaneous city noises would all contribute to the immersive experience.
Agreed the chatter volume is too low in TSW2 the sounds of everything else along the route can be perfectly heard, just not the radio chatter.