No, I just took some dummy wires and routed them in a believable fashion. Because it was visible in the picture, the black wire into the MMM is the only one that has a connector, and even that isn't soldered, just heatshrunk together. The battery wires are just laying behind the pack, and the pack itself is simply upside-down to hide its wires.
lol, I would be soldering that connection to be sure. I never liked crimping.