A modular system of multimedia components is available for all three body versions in the model line.

The standard chorus radio system features a CD drive and an amplifier that delivers 80 watts to eight speakers. The dual tuner works with two antennas in order to always receive the best signal. The chorus radio is based on Audi’s MMI operating concept and has been paired with a 6.5-inch monochrome display.

The first step up, the concert radio system, also includes an aux-in connection, an SDHC card reader and a 6.5-inch color display. Another alternative is the symphony radio system with a six-CD changer. Above that is MMI navigation. It reads the map data from a DVD; the driver can use voice commands to enter the destination and the system uses dynamic routing to lead the driver there. A triple tuner ensures particularly reliable radio reception.

Powerful media center: MMI navigation plus
MMI navigation plus is the high-end media center in the A4 model series. In addition to the DVD drive, it includes a 60 GB hard drive for navigation, phone and music data. A graphics processor from the specialist NVIDIA generates the three-dimensional images in top quality. The most important buildings of many cities have been lovingly recreated in the richly detailed 3D terrain model that serves as the map.

Measuring seven inches in diagonal and with a high resolution of 800 x 400 pixels, the MMI navigation plus monitor delivers tack-sharp images in brilliant colors. The advanced voice control enables the driver to say the city and street as a single command and also to control the telephone and music playback. In the UK, A4 drivers can also enter destinations using the six- or seven-character postal code – a fast and effective method.

The operation of the MMI navigation plus has also been improved. The number of hard buttons for the main menus has been reduced from eight to four (for Telephone, Navigation, Radio and Media), and the volume control now includes a skip function enabling the user to skip quickly between songs. Cell phones and mobile playback devices can be connected to the system via the Bluetooth interface so that the system can also play back music stored on them.

The Audi sound system is available as an option for all A4 models. At its core is a 180-watt, six-channel amplifier that powers ten speakers, including a subwoofer and a center speaker. The Bang & Olufsen Sound System offers even great sound quality. Its 505-watt, ten-channel amplifier drives 14 high-performance speakers, whose grilles are decorated with aluminum. In conjunction with MMI navigation plus, the system can play back DVDs in 5.1 surround sound.

Other elements complete the infotainment line. These include a dual tuner for digital radio reception (digital audio broadcasting [DAB] as well as DAB+ and DMB Audio), a digital TV tuner, a CD changer in the glove compartment and the Audi music interface as the interface to a mobile playback device or an iPhone.

Options for convenient telephony include a Bluetooth interface that also allows playback of music stored on the phone in the car and a Bluetooth cell phone preparation with a hands-free unit and voice control.

The equipment and data specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.