Cables and wiring connectors, as well as wiring harnesses assembled thereof, for the distribution of electrical power or electrical or optical signals; electrical track conductors on foil strips, in particular of plastic material; flexible circuit boards; actuating, regulating and controlling devices for electricity consumers in land, air and water vehicles, in particular for sun roofs, doors, windows, seats, interior and exterior mirrors, steering columns, pedals, light sources and headrests, individual parts of such actuation, regulation and controlling devices, such as dc/dc converters, sensors, actuators, control units to indicate failure of electrical or optical signals; electrical and electronic switches for vehicles; apparatus for optically or acoustically indicating switch status of the actuating, regulating and controlling devices of vehicles