On a similar note, I've got an old Robotron cab that I MAME'd (don't worry, it wasn't Robotron when I got it...it was a gutted Final Fight with the side art painted over). anyway, what's the best way to hook up the sound to the speaker, which should be original to the cab. Right now, I have a pair of amplified stereo speakers (the kind meant for PC's) in the marquee area, but I'd like to hook them up to the speaker in the cab (the PC speakers are muffled when I have a marquee in place)