Both a device-identification feature and a temperature-sensor feature are combined on a single integrated circuit. The mirror assembly can be used for conventional ball and socket couplings, fifth wheel couplings and variations thereof. A gate electrode is then formed on the gate dielectric on the top surface of the semiconductor body and adjacent to the gate dielectric on the first and second laterally opposite sidewalls of the semiconductor body. The power selector selects either the first power source or the second power source for provision to the at least one load based on characteristics of the at least one load. Rankings may also be created to determine an order for deletion of the media items currently on a mobile media player andor for addition of new media items to the device.