The Multi Media Interface (MMI) system is an in-car user interface media system developed by Audi, and was launched at the 2001 Frankfurt Motor Show on the Audi Avantissimo concept car. Production MMI was introduced in the second generation Audi A8 D3 in late 2002 and implemented in majority of its latest series of automobiles. Concept MMI consists of a single integrated interface, which controls a variety of devices and functions of the car. The system consists of the MMI terminal and the MMI display screen. The central element of the MMI terminal is the control dial. This dial can be rotated, to navigate up and down through menus, and pressed to activate a selected highlighted function. Starting with MMI 3G system an integrated joystick in the main control dial can be used to (for example) navigate the map. Depending on the MMI generation and configuration, four to eight function buttons surround the control dial which are used to launch the various features. The MMI screen is available as a five-inch monochrome black-and-red or seven-inch 16:9 full colour display, depending on the variation of MMI fitted in the car. MMI uses Media Oriented Systems Transport (MOST) technology to interconnect the various systems. Harman Becker Automotive Systems manufactures the MMI system, utilizing QNX Neutrino's Real Time Operating System (RTOS) software. Functions MMI operates a large number of in car entertainment components, car electronics, and other functions. The list below indicates the scope of systems controllable by MMI. However, depending on the actual car model, along with which version was specified (MMI Basic, MMI High, etc.), only some, and not all functions will be applicable or available. Satellite navigation, including traffic management (TMC) Radio tuner Media sources (CD changer, Audi Music Interface, aux audio port, TV tuner, two external AV sources) Telephone and directory Heating, ventilation, air conditioning, climate control, and seat heating Car setup (e.g. central locking and convenience function (coming home/leaving home, power sunroof and windows) options, global audio settings, suspension settings, interior lighting, Audi Side Assist settings etc.) Rear view camera and parking sensors Driver information (e.g. fuel economy statistics (often encompassed by "trip computer" functions), battery level, oil level, tire-pressure monitoring, etc.) User manual (full on-board car user manual, displayed on screen) Apple CarPlay and Android Auto for 2014 and later model. Cars Audi models for which MMI is available: MMI Generation RNS-E Certain cars have a "pseudo"