At first I had the whole thing wired with lamp wire, but lamp wire was so brittle that every time I mounted it the wire broke. Since then I am redoing the project using speaker wire. That was going well until this happened:
Ground is not an issue, but how do I solder the wire to signal? There is no conductor for the solder to stick to. As for the masking tape, speaker wire is so thick that I put tape so the signals and grounds don’t touch.