An electrical connector useful for both high-current and low-current applications including a first and a second conductive terminals, in which the terminals are interconnected by a plurality of substantially rigid and elongated conductive strips and apertures or gaps are disposed between at least some of the adjacent conductive strips. A variety of dials, transmission mechanisms and dilating elements are disclosed which may be combined in a variety of ways. The door can be secured to the vehicle in the open position so that the passengers have the option of riding in the vehicle while the door remains open. A portion of the impression material also may contour to a portion of the user’s palate.