Bose A20 Owner's Manual page 34

Installation
CAUTION: Do not use excessive force or bend the installed connector. This may
damage or break internal solder joints.
Note: The aircraft panel connector cannot be installed in an audio system using
transformer-coupled audio outputs. Contact Bose Technical Support, using the
contact information on page 39 for details.
Mono connection diagram
Existing wiring to
aircraft intercom/
audio panel
Stereo connection diagram
Existing wiring to
aircraft stereo
intercom/audio panel
34 - English
10-32
1/2A
V DC
Microphone - Jack
TPP
(PTT)
Tip
(phone audio)
10-32
1/2A
V DC
WHT/BLU
Microphone - Jack
TPP
(PTT)
Phone
audio (right)
Tip
(phone audio left)
RED
BLK
BLK/WH
WHT
BLU
WHT
WHT/BLU
BLK/WH
Headphone - Jack
RED
BLK
BLK/WH
WHT
BLU
WHT
BLK/WH
Stereo Headphone - Jack
1V+IN
2 GND
3 COMM L
4 COMM R
5 MIC HI
6 MIC LO
Ring
(audio)
Existing PTT
Barrel
switch
(gnd)
and wiring
(no connection to
Bose headset)
Barrel
(audio gnd)
1V+IN
2 GND
3 COMM L
4 COMM R
5 MIC HI
6 MIC LO
Audio
Barrel
(gnd)
(no connection to
Bose headset)
Barrel
(audio gnd)
Existing
PTT switch
and wiring