some punk a$$es did that to my friends navi over in reno. when he got back off the plane and went to his vehicle, the window was busted out and they yanked half his stuff.
those clowns were even stupider. instead of disconnecting a harness, they undid each individual pin out of harness plug.
so what they did, was more time consuming and ended up making what they stole, useless to them.
sounds like you're going to take care of business right proper if you catch them. i'd like to be a spider on the wall for that one!