1999 AUDI A4 CD changer

91-34

Checking cable between radio and CD
changer

- Switch radio off.

- Press MODE button on radio while turning radio
on.
Do not press the MODE button again.

If the cable connection is OK:
The radio display indicates: "CONNECT" and
"CD"

If the cable connection is NOT OK:
The radio display indicates: "NO CDC"

- Check electrical connections on CD changer.

- Repeat check as described above.
If not OK:

- Check wiring connections Electrical Wiring
Diagrams Troubleshooting & Component
Locations
Pa
ge 38 of 45 Radio s
ystems
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.91.1

91-36

BOSE amplifier with bass speaker
(subwoofer), removing and installing
(Avant)

The BOSE amplifier is located in the left side of
the cargo area under the cargo area side trim.

Notes:

If the vehicle is equipped with a CD changer, it
must be removed page 91
-32
.

Bass speaker (subwoofer), removing and
installing page 91
-37
.
Pa
ge 40 of 45 Radio s
ystems
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.91.1

91-37

Bass speaker (subwoofer), removing
and installing (Avant)


Note:
If the vehicle is equipped with a CD changer, it
must be removed page 91
-32
.
The bass speaker (subwoofer) is located on the
left side of the cargo area under the cargo area
side trim.
Pa
ge 41 of 45 Radio s
ystems
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE02.91.1