PSP Reviews – PSP Console, Games & Accessories

I bought this second hand but I know the guy and he said it was working great but when I connect my psp to it I cant get sound to play. I went to their website and followed the manual but still cant get any sound off of it. The lights on top are still lit up but when I try to play sound it wont do it. Anyone know how I can get sound or fix this? I connected the psp right of the cable that the chair has and tried it on MP3, IN, and WI-FI but it still doesn't play. Also how do I connect it to wifi if I dont have that other part (where can I buy it)