The standard E46 radio features a
cassette player. The optional radio has
a single in-dash CD player. Both radios
are prewired for the optional CD
changer that mounts in the trunk.
Another option, the On-Board Monitor,
integrates GPS navigation with radio
and IHKA controls. Basic radio controls
are also incorporated in the steering
wheel.
Sound system components are
interconnected via K-bus. Theft
proofing of the radio by code is no
longer required as the radio will not
function without the K-bus connection
and a valid signal from the instrument
cluster.
Other features of the sound system
include:
Autostoring of stations
Speed dependent volume
Telephone muting
Diversity antenna, described later in
this group, is optional on some models
and standard on the Convertible and
Sport Wagon.
RDS
Radio Data System (RDS) is a transmit
and receive system operated in the FM
band. It is a data service offered by
radio stations in which the information
is transmitted inaudibly with the audio
programs. The name of the station is
displayed in the radio when the RDS
system is active. Program identification,
program service name and RDS quality
are also displayed.
Radio
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Summary of Contents for 1999-2005 M3
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