please confirm I understood it right: · speakers for box tender versions are correct and have been delivered already· speaker for tub tender fits in as specified, but not yet delivered Concerning mainboard, I checked the reference sample now.It has the mainboard as designed, and also the decoder fits in.Obviously the fault was caused by an incomplete drawing:On assembly drawing of reference tub tender, both mainboard and decoder are built in, visible in section view “Schnitt A-A” – if you know what to look for.But in electronics drawing, neither the drilled holes of mainboard are shown, nor the decoder. Everything from motor and speaker to wheelset is shown – only decoder is not even mentioned or sketched with dotted lines L (also the mounting holes are missing on this page, too)So your designer did not take care of it, and I clearly admit that I also did not see it. Anyway, we must be able to get it assembled. I measured the boards: Decoder is overlapping by 1 mm over the front of mainboard. Maybe the inside of coal door can be slightly cut in that area. Or the front can be modified in mold slider to get more space I send an early version of the mainboard with the next FedEx parcel. Unfortunately without decoder, but correct size and (as I was told) working with sound.If you don’t have a decoder, you can also plug