I have recently bought an old pioneer soundsystem including: a double cassette tape deck CT-P720WR; twin tray compact disc player PD-P720T; sound image controller GR-P720; and stereo receiver SX-P720. Unfortunately it didnt come with the crucial cable which connects all four parts together. Its quite a flat, wide socket with around 15 or so pins. I was wandering if anyone knows what this cable is called and any ideas if these are still sold!? Thanks