Just as a follow up. Fraid the method doesn't work sadly, unless im doing something wrong. AddedSoundfiles named [lk#ni17].wav, [lk#ni18].wav and [lk#ni19].wav to the override folder and sadly still no sound on any selects of Ninde in game.
NM, Found out what i did wrong, needed to remove the [ ] from the file names. stuffs working now