UP_Phill has an excellent thread in the DCC and Electronics Forum about how to install a Tsunami Micro sound decoder connected to the light board (modified), with a tender light also fitted. At the time of this writing, there are some DCC problems with the Kato GS-4; this thread does not address that problem, but it does link to the Atlas Forum where that issue is addressed. many thanks to UP_Phill for this thread complete with pictures and narrative. Additional search terms: