24-1 Audio unit, telephone transceiver
24-2 Display module, audio unit
*Additional equipment
24-3 Sound processing module, diagnostic interface, audio block
*2 Before April 2009 issue. (inclusive)
*3 Since May 2009.
24-4 Sound processing module, audio unit, front left tweeter and midrange/woofer
* Gradually being phased out
*2 Cross-section depends on equipment
24-5 Sound processing module, audio unit, front right tweeter and midrange/woofer, center midrange/woofer
*Gradually being phased out
**2 Cross-section depends on equipment
24-6 Sound Processing Module, Audio Unit, Rear Left and Right Tweeters, Rear Center Woofer, Rear Left and Right Mid/Woofers
*Depending on equipment
24-7 Audio unit, radio, telephone and navigation system antennas, antenna amplifiers No.2 and No.3, satellite antenna
* 4-door models
*2 Roof Antenna
24-8 Audio block, jack for external audio sources
* Models with "AUX-IN" socket
24-9 Audio Block
* Models with a jack for external audio sources "Audi music interface"
(The text is based on materials from the website: AudiManual.ru)