Based on my recent experience of installing a TCS M-1 into a Thomas for a club member's grandchild, I doubt if any type of sound decoder and speaker could be crammed into it.
Does anybody know if there exists a "Thomas the Tank Engine" sound decoder? I already have the loco and I'm going to stick a cheap motor controller in it. Or preferably a combination motor/sound decoder? I know I can get a high-dollar unit and a programmer and download the sounds myself. Not sure if I want to go to that expense. What about those new Digitrax decoders-- could I do it with that? What's involved?
Thanks for any advice!