This invention relates to a rotatable device having two arms rotatably connected about a hollow hub wherein the arms include a cable extending through a passageway and the hub so as to minimize bending of the cables about each other when the arms are in a compact position. In particular this invention relates to a foldable GPS compass and a method relating thereto to present a compact folded device that is easier to install with minimal bending of the cables. The invention also discloses a detent disposed within the hub for accurate selective placement of the arms and method relating thereto.