Now, I have done extensive research on why this is happening and how to fix it but have come up with nothing. The only info on it was from a PSP "Ghetto Hacks" video where they used tin foil in the head phone jack. Basically what is happening is that there is no sound coming out of the external speakers unless headphones are plugged in. The PSP thinks there are headphones plugged in when there aren't, and aren't when there are... If anyone has any ideas on how to fix this, please let me know, thanks!