A91-10751.pngA91-10751.pngBlock diagram of permanently installed telephone 1 - Front information display unit -J685- in centre of dash panel2 - Front information control unit -J523- in glove box on left (MMI basic/basic plus)/behind glove box (MMI)3 - Multimedia operating unit -E380- in centre console at bottom4 - Data bus diagnostic interface -J533- behind glove box5 - Control unit in dash panel insert -J285- in dash panel6 - Steering column electronics control unit -J527- on steering column at steering column switch7 - Multi-function steering wheel8 - Microphone unit in front roof module -R164- in front interior light -W1-9 - Wireless telephone handset -R37-10 - Telephone cradle -R126- with SIM card reader and aerial for Bluetooth -R152-11 - Microphone unit in front roof module -R164- in front interior light -W1-12 - Telephone transmitter and receiver unit -R36- in front of front left seat beneath floor covering13 - Digital sound package control unit -J525- behind left luggage compartment side trim (MMI basic plus/MMI)14 - Sound systems15 - Aerial for Bluetooth -R152- in centre console16 - Radio, telephone and navigation system aerial -R52- (roof aerial)