I think this has been brought up before..But Ill ask it again here as it is so easy a question to answer... .Even a simple " yes " or "no " could suffice.. So,... is it true that one can not get a decoder and sound into an HO Proto Alco S1 ? I'm guessing decoder is in, sound is out..due to space not available for speaker...I am aware though of making a perminant lash up with a, say, equal dummy for speaker..But, then this kinda defeats the small, single, yard-switcher's purpous..nifty and nimble, spotting a couple cars hither and nither or trundling down an old branch/spur at 5 mph due to rough,old 30 Lb. weedy rail, where double units would be waistful. And, also that, same RR has road engines to boot.. I guess I'll have to moth-ball my beloved S1 and have to buy a brand new ' DCC/sound on board ' one, which I do believe, now exists by, say, Atlas or Athearn , Proto or such....Is It True ??