Does anyone know the actual decoder model that is installed in the Rio Grande™ #5336 (Large Flying Grande) - SD45 - DCC Sound Value?  JMRI reads it as several different options.  There are two options in SoundTraxx; DSD diesel and DSX diesel.  I chose the latter and using the JMRI throttle can activate functions but can not control speed forwards or backwards.  Command station works fine for throttle.  If anyone has suggestions please let me know.  Thank you.