Latest G Scale toy arrived this morning. An Aristo Craft Rio Grande RS-3. In need of help! Missing a horn, and several handrail stantions are broken. Was able to find a source for 3D printed replacement parts! Now, I need some additional help! Need to find the proper Airwire/Sound boards for it, so I can use it! Anyone know what the needed parts are?? I’ve searched some, but not finding much information. Gonna check the Phoenix site next, for sound. As always, help and/or information much appreciated. Thanks!