Audi A4 Cabriolet 2004 - Radio System SDARS with BOSE Sound System (Avant), Layout; 1 - Left Antenna Module; 2 - Left Rear Window Antenna; 3 - Rear Window Antenna

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Radio system SDARS with BOSE sound
system (Avant), layout
1 - Left Antenna Module
In left rear luggage compartment behind
trim
2 - Left rear window antenna
3 - Rear window antenna
4 - Right rear window antenna
5 - Radio
6 - BOSE power amplifier
In right rear luggage compartment behind
trim
7 - Front Midrange Speakers
In upper front door trim
8 - Front Bass Speakers
In lower front door trim
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication