Just an update on this project. This Saturday the railsounds generic board and railsounds power supply board arrived in the mail. Again very fast service from Lionel! I removed the signal sound board and inserted the Railsounds board and the power supply board into the clearly marked connectors. Ran the programming and yes it all worked. All the blue smoke stayed inside the componets and Railsounds are now part of this newly TMCC enabled engine! WooHoo! One thing I am not sure of and don't know if it really makes a difference in this case, is the aux1 programming number I used. Using this link
https://www.lionelsupport.com/...oreTMCCfunctions.pdf
graciously provided by TRW I tried #5 and #6 I cannot tell any functions that work or do not as there wasn't an operators manual with proper function list. If anyone can guide me to which # I should program in would be greatly appreciated.
All in All a Happy ending!
Thanks again to All!
John