hello all, well im new here and there's alot of good info here, the only thing im missing from completing my supergun is how to plug up the sound to work, ive done it all already,power supply, ntsc/rgb converter, jamma harness,2 controllers,and bought some pcb's(run and gun,immortal kombat2) now i want to get the sound to work, ive seen on ebay that some of these arcade home systems allow you to plug up rca's to your system to play as surround sound, pls help me or if you know where to find this out it'll complete my project,thanks all!!