Chrysler 300M Service Manual page 237

8A - 8 AUDIO/VIDEO
RADIO (Continued)
• AM/FM/CD with CD changer control (RBK sales
code)
• AM/FM/cassette/CD with CD changer control
(RAD, RBT or RBY sales code) - export only
• AM/FM/DVD with GPS navigation (RB1 sales
code)
All factory-installed radio receivers can communi-
cate on the Programmable Communications Interface
(PCI) data bus network. All factory-installed receiv-
ers are stereo Electronically Tuned Radios (ETR) and
include an electronic digital clock function.
These radio receivers can only be serviced by an
authorized radio repair station. See the latest War-
ranty Policies and Procedures manual for a current
listing of authorized radio repair stations.
OPERATION
The radio receiver operates on ignition switched
battery current that is available only when the igni-
tion switch is in the On or Accessory positions. The
electronic digital clock function of the radio operates
on fused battery current supplied through the IOD
fuse, regardless of the ignition switch position.
For complete circuit diagrams, refer to the appro-
priate wiring information. The wiring information
includes wiring diagrams, proper wire and connector
repair procedures, details of wire harness routing
and retention, connector pin-out information and
location views for the various wire harness connec-
tors, splices and grounds.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove instrument panel center trim bezel.
(Refer to 23 - BODY/INSTRUMENT PANEL/IN-
STRUMENT PANEL CENTER BEZEL - REMOVAL).
(3) Remove four radio mounting screws.
(4) Pull radio from panel and disconnect wiring
from radio.
CAUTION: Pulling the antenna cable straight out of
the radio without pulling on the locking antenna
connector could damage the cable or radio.
(5) Disconnect the antenna cable by pulling the
locking antenna connector away from the radio (Fig.
6).
(6) Remove radio from vehicle.
INSTALLATION
(1) Place radio near instrument panel opening.
(2) Connect wiring and antenna lead to radio and
slide into place.
(3) Install four radio mounting screws.
Fig. 6 ANTENNA TO RADIO
1 - RADIO
2 - LOCKING ANTENNA CONNECTOR
3 - INSTRUMENT PANEL ANTENNA CABLE
(4) Install instrument panel center trim bezel.
(Refer to 23 - BODY/INSTRUMENT PANEL/IN-
STRUMENT PANEL CENTER BEZEL - INSTALLA-
TION).
(5) Connect the battery negative cable.
RADIO NOISE SUPPRESSION
GROUND STRAP
DESCRIPTION
Some components used on the vehicles are
equipped with a capacitor to suppress radio fre-
quency interference/static.
Ground straps are mounted from the engine to
each shock tower and from the body to the muffler.
The ground straps should be securely tightened to
assure good metal to metal contact.
OPERATION
Capacitors are mounted in various locations inter-
nal to the generator, instrument cluster and wind-
shield wiper motor.
Ground straps conduct very small high frequency
electrical signals to ground and require clean large
surface area contact.
LH