A method includes providing a molded elastomeric mat having an input protrusion, an output device receiving surface including an output device contact, and a battery receiving indentation including a power supply contact. The method further includes insert molding an output conductive path into the elastomeric mat, the output conductive path electrically coupling a circuit carrier output contact to an output device contact, and insert molding a power supply conductive path into the elastomeric mat, the power supply conductive path electrically coupling a circuit carrier power contact to the power supply contact. The method includes interfacing the elastomeric mat with a circuit carrier, aligning the input protrusion with a circuit carrier input contact, interfacing a display device with the output device receiving surface, electrically connecting the display device with the output device contact, and positioning the elastomeric mat into a housing.