Put a Athearn OEM Soundtraxx decoder in your Fox Valley Models HO scale locomotive. The Athearn board is missing the four screw holes and the FVM model doesn't have the clips. This remedies that issue for those rare times you want to swap decoders from a Athearn to a FVM and visa versa. The ESU that I took out of the FVM has the mounting clip holes so no adapter is needed there.
This model doesn't clip into the decoder but I found that to be unneeded. This model also holds the Athearn decoder high enough to allow the capacitors on the bottom of the board to not tweak the decoder.
The author hasn't provided the model origin yet.