input device designed to be physically connected to a vehicle and to remain connected even when the vehicle is not in use

NOTE 1 to entry Built-in input devices include devices that can be temporarily disconnected for security reasons (e.g. some radios are equipped with detachable front panels).

NOTE 2 to entry Built-in input devices are typically considered to be a part of the vehicle.

NOTE 3 to entry Built-in input devices require a maintenance operation to connect or disconnect.