Audio System - Front Door Speaker Buzz/Rattle/Vibration
TSB SB07-13-S001Issue Date: SEPTEMBER 2007
Buzz, Rattle Or Vibration Noise From Front Door Bose Speakers With Radio Set On High Volume
Affected Vehicles
2005-2007 Isuzu Ascender with Bose(R) Premium Speaker System Performance (RPO UQA)
Condition:
Some customers may comment on a buzz, rattle or vibration noise from the left or right front door speaker when the radio is set on high volume.
Possible Cause:
The premium Bose(R) speaker produces more robust low frequencies, which may cause the front door trim panel reflector to rattle or vibrate.
Correction:
Isolate the rattle with flocking tape. DO NOT replace the speakers.
Service Procedure
Isolate the rattle by installing flocking tape to the back side of the front door trim panel using the steps below.
1. Verify that the rattle is coming from the front door trim reflector area.
2. Remove the front side door trim panel. Refer to Front Side Door Trim Panel Replacement in the Service Manual.
3. Locate the two door trim reflector attaching tabs (1) on the back side of the door trim panel.
4. Cut a piece of Kent(R), KT13487, BRS Tape, or equivalent flocking tape, to 35 mm (1-3/8 in) width by 60 mm (2-9/16 in) length.
5. Install the flocking tape (1) over the two reflector tabs.
6. Install the front side door trim panel. Refer to Front Side Door Trim Panel Replacement in the Service Manual.
7. Verify that the condition has been corrected.
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