So when you say "the four top strands," would that be the red on a non-rainbowy cable and the 3 greys next to it? I have a spare grey cable, but "top" and "bottom" are kind of ambiguous.
(I think we talked about it in Discord, but for people who weren't in on that or who don't have their own ribbon cable connector presses...)
Yes! that's right. On the grey ribbon, it would be the red one and the next three that you should leave intact in order to keep the ground and +5v available throughout the synth. I've edited the first post to make it clearer. Thanks!