It was a test mojo, to see how badly damaged your grey matter really is. And you passed!!! Way to go!!!

And you are correct again, I’m not a doctor so I would definitely not take any medical advice from me!

Have you checked to see if anything else is wired differently than you think it is? Maybe color code the ends or label them as you install ( I’m being serious here). I imagine there is a lot of wiring for an active system plus your peripheral speakers and subs too.