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TSB 23-028-07 Rev. A

Buzz-Like Sound From Front Door Speaker Area When Radio Is On

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Date: July 13, 2007   

Models: 2006 - 2007 (DR/DH/D1/DC) Ram Truck (1500/2500/3500)

Overview:
This bulletin involves determining the source of the buzz-like sound and making
appropriate repairs.

Symptom/Condition:
The customer may a experience a buzz-like sound coming from the left and/or right
front door when the radio is on. This sound in question will come from the interior
door trim panel, in the area where the radio speaker is mounted. This condition may
be misdiagnosed as a bad radio speaker. The actual cause may be the interface between
the door trim panel sound insulation and the door water shield.

Diagnosis:
1. Turn the ignition switch to the "ON" position. DO NOT start the vehicle engine.
2. Turn the radio on. Set the bass and treble settings on the radio to their "centered"
     position and fade the sound to the suspect door(s).
3. Adjust the radio volume to the #20 position with music playing.
4. Determine if the buzz-like sound condition is present in the suspect front door(s).
5. Turn the ignition switch to the "OFF" position.
6. If the condition is present perform the Repair Procedure.

Parts Required:

Qty.	Part No.	Description
AR (1)	68034173AA	Insulation, Front Door Speaker Sound (Left Side)
AR (1)	68034280AA	Insulation, Front Door Speaker Sound (Right Side)
AR (1)	56040860AC	Speaker, Front Door Radio - Premium Level (Left or Right Side w/mounting bracket)
AR (1)	56040953AB	Speaker, Front Door Radio - Base Level (Left or Right Side w/mounting bracket)

Repair Procedure: 

1.	Remove the interior trim panel on the affected door. Refer to TechCONNECT for detailed service procedures. Select the "Service Info" tab > 23-Body > Door - Front > Trim Panel > Removal and Installation.
CAUTION: The door trim panel is attached to the door by molded plastic retaining clips that are INTEGRAL to the door trim panel. DO NOT pull the door trim panel directly off of the door or damage to the trim panel and/or the power switch assembly will occur.
2.	Remove the front door radio speaker from its mounting to the door. Do not disconnect the electrical connection to the speaker.
3.	Turn the Ignition switch to the "ON" position. DO NOT start the vehicle engine.
4.	Hold the radio speaker by its magnet in your hand.
5.	Operate the radio as described above in the Diagnosis section.
6.	Listen from the side of the speaker for the buzz-like sound.
7.	Is the buzz-like sound coming from the speaker?     a. If YES >>> then turn the ignition switch to the "OFF" position and replace the radio         speaker. Proceed to the next step.     b. If NO >>> then turn the ignition switch to the "OFF" position and install the radio         speaker to the inner door panel. Proceed to the next step
8.	Loose fit the new sound insulation to the back side of the front door trim panel. DO NOT remove the original sound insulation from the door trim panel. The new sound insulation will install over the original door sound insulation and extends to the bottom of the door. Note the pieces of adhesive tape on the new sound insulation.
9.	Remove the backing from a piece of adhesive tape and adhere the tape to the original sound insulation and/or back side of the trim panel.
10.	Finish attaching the remaining pieces of adhesive tape to the original sound insulation and/or back side of the trim panel.
11.	Verify that the new sound insulation is installed correctly.
12.	Install the interior door trim panel to the door.
13.	Verify that the buzz-like sound is corrected.

Policy:    Reimbursable within the provisions of the warranty.

Time Allowance:

Failure Code:

This page was edited on: February 20, 2008