Quick and Dirty Mono Direct Line Out for SEGA Genesis II

My recent work with Alex Yabsley demanded the musical control of eight SEGA consoles simultaneously. Given that we only had a few actual SEGA AV cables between us, we had to come up with some fast ways of getting direct audio out of Genesis and Mega Drive II units. In two cases, I spliced RF cables but we ran out of those as well! So I decided to find the summed mono audio points on the board, and solder an RCA connection directly to the relevant point. This thin cable is then fed out through the back of the SEGA via spacing between the AV port on the motherboard and the physical edging of the casing. Thus, a quick and dirty summed mono direct line out.