Audio System - Front Door Speaker Buzzing Sounds

NUMBER: 23-028-07 REV. A

GROUP: Body

DATE: July 20, 2007

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 23-028-07, DATED JULY 12, 2007, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND ADDS 2006 MODEL YEAR.

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

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

MODELS:

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

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:

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 remain 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:

Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.