It's a bit more complicated to give units a new sound, entries in the Audio3DScripts.xml and AudioDefines.xml are necessary and the single kf files have to be edit accordingly. I've created a modcomp that replaces the wolf graphic with the boar one to give you all the necessary files. Note that the audio xml files are not part of the modular folder, since those files can't be made modular.
And, while I was at it, I also created a shadered version of your unit.
Btw, I think the soundfiles are a bit too long, they tend to overlap with the next sounds that will be played. You can notice this best in combat.