Just break it open and cut all the wires in the box. I just dont see the point in them, everyone ignores them. The day we moved in i broke ours of the wall no one gave me a second look.
My in-laws were broke into a few years ago. The thieves put grow bags by the patio door catch the breaking glass and smashed the door.. When they got home after being alerted you could see the four footprints into the room from the grow bag they trod in and at that point the alarm went of and they left empty handed.