We have a camera system installed in our horse trailer. All is good except the mount for the monitor is a bit too flimsy. I've tried glueing it, shimming it, bracing it and it still shakes like a bobble head going down a rough road. It's a 9" monitor and it has a screw attachment on the bottom like a camera. It's just too heavy for the included mount. Does anyone have any personal recommendations for a better mount?