Here is the link
http://forum.ppcgeeks.com/showthread.php?t=41385, the file at bottom of page Touch Pro audiofix, download this to your card, double click, there are two file one full volume and one Lite, try Lite first by clicking to install in main memeory, if this is not load enough then try Full. Please read post about dange to phone and ears. I ending up using full myself.