I have old armoured cable in my bathroom. I had a 3 wire - black, red, white and a 2 wire - black and white, somehow connected happily in an unused circuit box. They were hidden behind an old medicine chest and when I took the medicine chest out, I took out the box (and connections) and capped each wire individually. I lost all power in the bathroom. The 3 wire black is live, the others are not and I am pretty sure the red was not attached to anything, but I could be wrong. Which wires do I need to put back together to get the circuit working again? And yes I will note the connections before doing something this silly again.