I've just pulled out a broken mp3 player from my car and going to replace it with an older sony player, model cdx-f5500, but i can't find the plug and wires from the back of it, so all i can see are the pins. I'm wandering if anyone has a spare wire plug, and if not, maybe a wiring diagram of the actual unit that could tell me which pins are what, so that maybe I could open the unit up and solder wires directly. Cheers