Page 9 of 82
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"Concert II" and "Symphony II" radio
systems (Sedan), component overview
1 -
CD Changer Unit -R41-
OptionalIn glove compartmentRemoving and installing Page 91
-48
Check wiring Page 91
-50
2 -
Center Mid/High Range Loudspeaker -
R158-
In instrument panelRemoving and installing Page 91
-59
3 -
Radio -R-
In instrument panel, centerRemoving and installing "Concert II" radio
Page 91
-44
Removing and installing "Symphony II"
radio Page 91
-46
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
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4 -
Amplifier -R12- (for rear loudspeakers or
BOSE power amplifier with "BOSE
sound system")
In right rear luggage compartment behind
side trim Removing and installing amplifier for rear
loudspeakers Page 91
-63
Removing and installing BOSE power
amplifier Page 91
-65
5 -
Bass Loudspeaker -R100-
Below rear shelfRemoving and installing Page 91
-61
6 -
Antenna Selection Control Module -J515-
Under rear headliner trimRemoving and installing Page 91
-67
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
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7 -
Rear Midrange Speakers -R34- &-R35-
In upper rear door trimRemoving and installing Page 91
-58
8 -
Rear Bass Speakers - R15- &-R17-
In lower rear door trimRemoving and installing Page 91
-57
9 -
Front Midrange Speakers -R26- & -R27-
In upper front door trimRemoving and installing Page 91
-55
10 -
Front Bass Speakers -R21- &-R23-
In lower front door trimRemoving and installing Page 91
-54
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 12 of 82
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"Concert II" and "Symphony II" radio
systems (Avant), component overview
1 -
CD Changer Unit -R41-
OptionalIn glove compartmentRemoving and installing Page 91
-48
Check wiring Page 91
-50
2 -
Center Mid/High Range Loudspeaker -
R158-
In instrument panelRemoving and installing Page 91
-59
3 -
Radio -R-
In instrument panel, centerRemoving and installing "Concert II" radio
Page 91
-44
Removing and installing "Symphony II"
radio Page 91
-46
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 13 of 82
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4 -
Amplifier -R12- (for rear loudspeakers or
BOSE power amplifier only with
"BOSE sound system")
In right rear luggage compartment behind
side trim Removing and installing amplifier for rear
loudspeakers Page 91
-64
Removing and installing BOSE power
amplifier Page 91
-66
5 -
Right rear window antenna
With FM antenna 3
6 -
Bass Loudspeaker -R100- In right rear luggage compartment behind
side trim Removing and installing Page 91
-62
7 -
Rear window antenna
With FM antenna 2
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
Page 14 of 82
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8 -
Left rear window antenna
With AM antenna and FM antenna 1
9 -
Left Antenna Module -R-108- In left rear luggage compartment behind
side trim Removing and installing Page 91
-68
10 -
Rear Midrange Speakers -R34- &-R35-
In upper rear door trimRemoving and installing Page 91
-58
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
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11 -
Rear Bass Speakers -R15- &-R17-
In lower rear door trimRemoving and installing Page 91
-57
12 -
Front Midrange Speakers -R26- & -R27-
In upper front door trimRemoving and installing Page 91
-55
13 -
Front Bass Speakers -R21- &-R23-
In lower front door trimRemoving and installing Page 91
-54
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication
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Radio systems with Satellite Digital Audio
Radio Service (SDARS) (Sedan),
component overview
1 -
CD Changer Unit -R41-
OptionalIn glove compartmentRemoving and installing Page 91
-48
Check wiring Page 91
-50
2 -
Center Mid/High Range Loudspeaker -
R158-
In instrument panelRemoving and installing Page 91
-59
3 -
Radio -R-
In instrument panel, centerRadio "Concert II" Removing and installing
Page 91
-44
Radio "Symphony II" Removing and
installing Page 91
-46
Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 - Communication