The method provides wide-range delay value adjustment without making changes in cell size and metal wiring, even when a process variation occurs. The natural stone cover plates are made from quarried stone, cultured stone, and natural rock materials such as terrazzo, marble, and granite preferably supplied by the homeowner, or end user, to a central factory, then manufactured, then shipped back to the end user to match other such material being used in the end user’s building. The method saves the user time by eliminating the need to refresh the screen when changing the amount of text displayed. In various embodiments, portions of an upgradeable receiver system may be made as modular components that allow easy replacement for the upgradeable components which may include a signal amplifier andor a signal filter. The latch assembly has a base and a latch slide engaging the base.