neutral saftey with painless 8 circuit?

Has anyone used a painless or any other aftermarket harness and wire in the neutral safety switch? I bought an 8 circuit and wired everything in and raced a few times until the tech guys asked if it would start in gear. Well it did. I need to wire it in. Do the relay boxes seperate on those to run the ground to the switch? Any other way I can do it a little easier?