Guys,
Just to clean-up some of the information presented in this thread... the OP mis-labeled the board he had as RailSounds 2 versus 2.5, and things went wayward from there. To make matters worse, Lionel to this day also labels some of the RS2.5 boards as RS2, which confuses things even further.
I made a bunch of corrections to the original "RailSounds History" post found below. My comments are in orange.
https://ogrforum.ogaugerr.com/...26#77311805264179526
TRW