Hey Mr B ,,I have a Burlington northern tender, 16 wheel long haul, It has what appears to be a decoder in it with 2 speakers and a different plug, Black ,than what is shown on most of the  Bachmann pics(yellowish plugs)For Bachmann.It says Kader 8010 and a second board marked 8011, is this an old version of factory sound/dcc it was given to me by a friend,but he doesn't know any more about it than me. I'd sure like to get some info on it to put it on one of my Bachmann  steam trains...HELP!!