Do all arcade machines have a volume control in them? Or are many stuck on one setting? I have an Aliens (Konami) cabinet, that was converted form a Pac Man cabinet. I am coverting it into a Teenage Mutant Ninja Turtles cabinet. Well at least for now. Anyway I already had wanted to adjust the volume on Aliens but now that I have plugged in the Turtles PCB it is loud. And I mean very, very loud. Is there anything that can be done. I don't seem to find a volume control anywhere, what should I look for? Thanks!