Even with color-coded connectors, one can still plug them up wrong if not paying attention. BTDT, and I bet a lot of folks have done it as well.

I plug everything together and make sure all the moving bits go the right direction. Then I put a dab of silicon adhesive on two fuse connectors and two wing connectors, and clamp the whole assembly together lightly. When the adhesive has cured the paired connectors can be unplugged _and they can't be plugged back in wrong_.

To me, KISS means figuring out how to prevent me shooting myself in the foot 'cuz I will if I can.