TIU's in the o-gauge circle are pretty easy to locate. I'm sure we all know at least one person who has one. No purchase necessary as he would only need it for the time it takes to upload the file. Much like tool rental at the local auto parts store, borrow it, use it, return it.
Contradictory to what you said earlier, it is possible to swap & interchange specific elements of a sound file(s) if one so chooses without changing the entire sound file. Works awesome when adding quillable whistles to RailKing engines.
Barry Broskowitz posted:
You cannot simply change the horn sounds in an MTH PS2 or PS3 engine. Rather, you'll need to swap out the engine's entire sound file with one that has the horn that you want.
