My rear view camera monitor is loose and I can't find how to tighten it. The whole think moves on the windscreen so I'm asuming there's something stuck to the window inside the bracket and a fixing of some sort inside the bracket which needs tightening. Have tried all I can think of to get the thing off the window to tighten it up but no joy, can anyone help? It's a Swift Escape standard factory fitment and replaces what would have been the interior mirror