In case you are not aware of this
You can click on any .wav file and you should be able to hear it. If you click on any .wav file and do not hear anything something is rotten in denmark.
I am sure that you know that there is a sound cfg file that should be in the sound folder
Make sure the file names match those that are in the file exactly they have to be an exact match letter for letter case for case if the file name is SoUnD then the sound cfg file can not be SOUND or sound it has to be SoUnD
If you hear a sound from all of the .wav files but still hear nothing in the aircraft than the problem has to be in the sound cfg file
I for one do not like to alias any thing from one plane to another, instead I copy the entire file form one plane to another
It drives me crazy when I down load a four engine jet aircraft than discover that the panel has been aliased to the default B737. Why design a aircraft than go and mess it up by using the wrong panel for it.