Received pup last year with broken plastic turn knobs. Obviously broken when someone lifted door up before turning knobs. Came up with this idea. Furniture nuts riveted to the part of the hinge plate that attaches to the roof. Then a simple piece of 1x3 (or 1x4) held on with 2 bolts. (The wood is ugly, I know. It was just a piece of scrap for prototype) The next move is to attach a catch-all shelf or bin to the soon-to-be painted wood for keys, glasses, wallet, etc... Not as convenient as the turn knobs, but more functional and cheap. I could have just ordered new turn knobs, but it would have come up to $25 for 2 with s&h.