Bridge adapters configured for insertion into a cavity within a door stile are presented, the bridge adapter including: a planar body including, a top plate disposed along a distal end of the planar body, a first side plate including a first side plate front edge and a first side plate back edge located opposite the first side plate front edge, where the first side plate is mechanically coupled along the first side plate front edge and the top plate back edge by a first hinge, a bottom plate including a bottom plate front edge and a bottom plate back edge located opposite a bottom plate front edge, where the bottom plate front edge is mechanically coupled along the first side plate back edge and the bottom plate front edge by a second hinge.