It is going inside a boaphile so I can't solder a hole in the side...well I could but i don't really want too. I like the idea of just wrapping it up and tying it I was just worried he'd some home undo and get caught up in the cords. Looking at the cage though I'm thinking I could run the probe cord through the gap around the door frame and around the back of the cage that could work because the cord is thin enough to fit. Hmmm...now I'm thinking if that would work for the thermostat too. Unfortunately I was stupid and ordered the Ranco thermostat after I ordered the cage so I don't have it yet, but I think the thermostat probe cord is too wide. Thanks for the pics!