I could use some help on this, either I'm doing the instructions wrong or my .cia is illegitimateI used HackingToolkit3DS to extract the cia and got into the folders now! replaced all the music already with a mod to original-ify the music. I'm going to check out other mods before I attempt to wrap it all back up again.
I know im quite late to this discussion but I hope I could at least be pointed in the right direction.