Acually.You can.Except there are ALOT of exceptions. 1.It must be a .mdl0 file 2.You must NOT change the bones.(Yet) 3.All of the contents of the mdl0 must be the same.(What mean is ya can't delete any part of the model.Only change them)
How did you make the brstm?Tell me all the steps.The way i make brstm's are i just use datarions gui.Plus custom music works perfectly on mah wii.Might be(99.999999999 chance not)be cus of your system menu.There are rumors of brawl hacking isn't the best on menus over 4.0.I'm personally WAS on 4.0 so i couldn't mod the wii until bannerbomb came out and i downgraded back to 3.2.
How about i insert the zip of the mp3s in there?I didn't change the names or anything so you just need to play and download otherwise i'll have to find 498 previews on youtube.