Scratch that - I've done it. For those wanting to do the same, just open the boot. Then look for the two rubber 'star shape' bungs on the left and right underside of the window shelf. With your fingers, just gently but with some pressure, pull down on those so they eventually just come out. Then the shelf will naturally just drop come off from the other side (that pushes into the window). Very simple, nothing breaks or snaps or needs tugging. Hope this helps.