6
Security LED
The security LED will flash if the radio is switched off and the igni-
tion key is pulled off, provided the appropriate connection has been
made (see page 42). To deactivate the security LED, follow the
instructions given on page 34 in the “EXPERT control level” chapter.
Extended functions (EXPERT)
A special control level enables you to use extended functions
beyond the level of the basic settings. This keeps the operation of
the car radio as easy as possible.
Operation with a car telephone
You may connect a car telephone or CB radio to your car radio.
When operating the car telephone or CB radio, the car radio is
muted and »PHONE« appears in the display. See the notes on page
35 in the “EXPERT control level” chapter, and on page 42, A 2.
CAR AUDIO CHALLENGE 530 DAB
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PHONE