A: To fit the holder you need to remove the top or bottom wall bracket (Whichever is easier)there is usually a cover on the top and bottom bracket that hides the screw un clip the cover and undo the screw, slide the old holder off and slip the new one on, then refit the wall bracket and cover.
We should have a video on YouTube in the next week or so showing how to do it.
Answered 282 days ago | The Doc