Specifically, how would I replace the audio that plays for a .cia file on the home menu? I was using this and no option was available for me to edit the audio sample that plays.
If you are currently on the RiiConnect24 Patcher, select the "U" option.
The letters represent the region of the Wii Console. You can check which letter region you have in your Wii settings.
U = North America
K = Korea
E = Europe
J = Japan