Yes, used the manufacturer Yamaha #318, Device Cat. Cassete Decks < AV #104, Apply Filter, Your model is not on the list -> Add device template, answered the questions, and cut and past the hex codes for it.
on the OSD, there is the menu entry KX-390, and Audio, Video, TV, Hulu Player, Games, Floorplan.
But when i select KX-390, nothing happens, no menu, no amp input swicth, nothing.. is a dead entry..
Did the same for my tuner, but Device Cat. Radio < AV # 134, but for this one, not even the entry was created at scenarios.
There is something missing, but i'm not figuring out what.....