Music on your r4/others while gaming?

I'm wondering if there's something like a "background music wizard homebrew thing".
What I exactly want, is disabling the normal sounds of a rom and instead, listening to a mp3 file i choosed. I'm very tired of a few 'head-hurting' :o battle songs...
I'm pretty sure it's possible to fix this problem. BUT!! I and everyone (I guess) know you can simply hack a rom 8). I'm searching for a homebrew, wich fits with every rom. Also, can you actually do that with moonshell 1/2?. If so, then please tell me how... My head hurts . :(

why not just play some music from pc and mute ur ds? lol
thats what i do now since my sd card doesnt have much space,
i dont think u can do it with moonshell as it plays movies/media, no background.
or atleast on mine. it only does media if i press media from main menu...

Not direct audio stored on media storage, no.

Replying to #3

Too bad... I'll have to hack all my roms. :)

you reminded me to "Hack" my weeds!
x.x

Replying to #5

you're welcome ;)