Would something like this: and some RCA stereo cables...
...Give me stereo sound from a Genesis 1?
Tonight, when I was tipping back a few, this idea came to me. I tried it with a RCA Y-adaptor lying around, and a RCA to 1/8th plug w/ some cables and I got sound from both channels, so I guess it works. I didn't have anything like the pic I posted above at hand. But I got some video noise when there was sound on the screen, and some of the music in Streets of Rage 2 was off, like the song on the first level.
I'm guessing it was because I was using some crappy generic radio shack cables and a few adaptors, and the audio cables I used where composite video cables. Now... using the correct adaptor (not two at once) and rca stereo cables, but if I had it connected to a stereo, would it sound as good as a Genesis 1/Sega CD connected to a stereo through the back (using the mixing cable from the headphone jack to the mixing port and rca cables connected to a stereo)?