In a motor vehicle having an internal combustion engine, an enabling condition is a function of at least one operating variable, of the motor vehicle andor of the internal combustion engine. The hat is formed of a thread yarn material and the hat is provided with a shape suitable for securing the hat around a person’s head so as to conform to the contours of the head to substantially minimize gaps between the hat and the head. The substrate can be a thin sheet of polyimide tape that is etched or perforated to provide holes through which the solder balls contact the lands used to mount the chip capacitor.