L0rdNiC0 releases his tutorial for the Sound Reactive LED Mod for the PSP Slim and Lite. This Mod does not limit any existing functionality of the PSP Slim and uses a factory switch to allow the mod to be turned off/on.
Check it out over at http://www.acidmods.com
http://www.acidmods.com/forum/index.php?topic=10815.msg81852 is the link for the Tutorial
http://www.youtube.com/watch?v=Ma9Ho2T8g20 is the link for the YouTube Vid