[Deb Mac]

Just took another look at the picture... I think that bit was originally mounted horizontally. One screw pulled through and so they just swung the thing vertically and then glued it in place - looks like a nice solid epoxy! Seriously doubt I could get it off without demolishing huge chunks of the wall. I can work around it... Use the existing hole to feed the antenna &/or power wire through. I've got some rubber grommets that should work with that hole nicely.