The SMS and Genesis 1 A/V cables are compatible, and both very mono. There is absolutely no stereo audio leading to the Genesis A/V connector. Unless you've rewired the console, there is no way to obtain stereo audio from a Genesis 1 without using the headphone connectors. I used to use my Commodore 64 video cable with my Genesis(which has 3 RCA plugs: Y/C+Audio, 2 of which share the same pins as the composite video/audio on the Gen1); I suspect similar arrangements have caused this confusion regarding the existance of Genesis 1 stereo A/V cables.Originally Posted by Tempest
That being said, I still don't understand why you don't want to just use a 1/8" stereo male -> 1/8" stereo male wire to connect the Genesis into the Sega CD, and use the RCA jacks on the SCD for audio. I only wish more consoles used standard A/V connectors on the back. It's only a little extra wiring, and it beats the hack 'n slash you'll have to do to get a Gen 1/SCD/32X down to one A/V cable.
Besides, stereo Genesis 2/3/32X cables cost alot more than the mono versions, and seem to be harder to find. If anybody can source them for under $6, I'm all ears.