Changing voices in Gecko OS?

[MaystheCraze]

Is this still impossible with the File Patch Code, or has some workaround been found? I can't use Riivolution because my Wii's Disc Drive acts screwy when I try to play double sided games like SSBB. Am I gonna have to go into the ISO and mess with some stuff if Gecko OS doesn't work?

EDIT: And never mind. Guess I should have just looked for the answer first.  :>.>palm:
http://kc-mm.com/2013/09/11/feature-sfx-modding-is-finally-possible-for-gecko-users/