the psp does not have an input hack but the software is ported on and a the mic headphone with the audio input is used. like the the headphone has 2 parts, i side is for ear phones and the other side connects to phone and has a remote with mic n buttons that connects to the earphones part. this is in most nokia phone headphones. so the tv out cable was used and connected to the mic part and those 3 coloured pins of tv chord was connect to guitar and the other with speakers. i will post a picture on this thread