Thank you for the reply. I ran the cord down and out of the door in the corner. I ran it for an hour and once it got to temp it stayed where I wanted it. I don't have a soldering iron, so it will have to work for now. Thank you as well for the inspiration to build this and providing pics, they helped a lot.
I'm glad to hear it helped. Depending on the way the door seals, maybe you could even trim a little bit of the rubber seal to give the cable some room if you have to run it through the door?