QUOTE: Originally posted by wjstix
I would check with Bachmann. Given the shape of the "plug and play" Soundtraxx sound decoder/speaker assembly, it wouldn't fit in a vanderbilt tender, so they used a rectangular one. Unfortunately you might end up having to have an engine with the wrong tender but with factory sound, or one with the right tender and either no sound or adding a sound decoder to it yourself.
I believe this is the decoder w/ built in speaker they are using:
Tom View my layout photos! http://s299.photobucket.com/albums/mm310/TWhite-014/Rio%20Grande%20Yuba%20River%20Sub One can NEVER have too many Articulateds!
Model Railroader magazine