Bose 3-2-1 GSX SERIES III Owner's Manual page 21

SETUP
=
Check to see if your cable or satellite box has red
and white AUDIO OUT connectors.
A red and white audio cable may (a) or may not (b)
already be attached to these connectors.
a=
=
To use the AUDIO OUT connectors, follow a or b as
appropriate.
a. If an audio cable is already attached
Disconnect the cable from the TV only.
AUDIO OUT
OR
b.
AUDIO OUT
b. If an audio cable is not yet attached
Connect the cable to your cable or satellite box.
Be sure to connect red to red and white to white.
c. If there are no AUDIO OUT connectors at all,
continue with _ on page 22.
AUDIO OUT
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