SPEAKER
DESCRIPTION
STANDARD
The standard equipment speaker system includes speakers in four locations. One 15.2 X 22.8 centimeter (6 X 9
inch) full-range speaker is located in each front door. There is also one full-range 13.3 centimeter (5.25 inch) diam-
eter full-range speaker located in each rear door (quad cab) or B-pillar (regular cab).
PREMIUM
The optional premium speaker system features eleven Premium model speakers in seven locations. Each of the
standard speakers is replaced with Premium model speakers. One 8.8 centimeter (3.50 inch) diameter speaker is
located on each end of the instrument panel top pad. One 6.3 centimeter (2.50 inch) diameter speaker is located in
the center of the instrument panel top pad. One 15.2 X 22.8 centimeter (6 X 9 inch) Premium speaker is located in
each front door. There is also one coaxial 13.3 centimeter (5.25 inch) diameter Premium full-range speaker located
in each rear door (quad cab) or B-pillar (regular cab). The premium speaker system also includes a power amplifier
mounted behind the glove box. The total available power of the premium speaker system is 368 watts. If equipped,
a 25.4 centimeter (10 inch) subwoofer is located behind the center passenger seat along with a amplifier (rated at
150 watts) located under the center passenger seat. The total available power if equipped with the subwoofer and
second power amplifier is 518 watts.
OPERATION
Two wires connected to each speaker, one feed circuit (+) and one return circuit (–), allow the audio output signal
electrical current to flow through the voice coil. For complete circuit diagrams, refer to the appropriate wiring infor-
mation. 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
connectors, splices and grounds.
DIAGNOSIS AND TESTING
SPEAKER
Any diagnosis of the Audio system should begin with the use of a scan tool. For information on the use of
the scan tool, refer to the appropriate Diagnostic Service information.
Refer to the appropriate wiring information.
WARNING: DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, SEAT BELT TENSIONER, SIDE AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MIN-
UTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNO-
SIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE
THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
CAUTION: The speaker output of the radio is a “floating ground” system. Do not allow any speaker lead to
short to ground, as damage to the radio and/or amplifier may result.
1. If all speakers are inoperative, check the fuses in the Integrated Power Module (IPM). If OK, go to Step 2. If not
OK, repair the shorted circuit or component as required and replace the faulty fuse.
2. Check the amplifier fuse (if equipped) in the IPM. If OK, go to Step 3. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
3. Turn the ignition switch to the ON position. Turn the radio receiver ON. Adjust the balance and fader control
controls to check the performance of each individual speaker. Note the speaker locations that are not performing
correctly. Go to Step 4.
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AUDIO - SERVICE INFORMATION
DR/DH