Anyways, I acquired a Kato SD80MAC in Conrail a while back. I just installed a "Plug and Play" DCC decoder at first but recently had the time and money to install sound. I chose a Tsunami TSU-KT1000 decoder. This is a simple board replacement requiring very little work. Unfortunately these decoders are being phased out. I used a TCS UNIV-SH1-C WowSpeaker and enclosure which I am very satisfied with. More details and a video are below.