Does applying pressure to a trim panel reduce or eliminate the audible noise?
Yes | REPAIR or REPLACE the trim panel as needed. |
|---|---|
No | GO to F2 |
F2 REMOVE AND INSPECT BEHIND/UNDERNEATH THE SUSPECT TRIM PANEL(S)
Remove the trim panel to access the suspect speaker. Operate the audio system using digital media such as a CD or MP3. Validate where the poor sound quality area is located. Check:
Trim panel for loose components (e.g. speaker grille) around the speaker area. Trim panel joining components for missing or broken pieces. Lock and handle mechanical parts for correct attachment. Wire harnesses for correct routing. Wire harness fasteners for correct attachment. Water shield for correct placement (speaker air path not blocked). Water shield for correct bonding to sheet metal. Storage areas for loose items. All child safety belt anchors (if equipped). All safety belt retractors. All speaker bracket fasteners and other fasteners are secured and tightened to specified torque.
Was the source of the noise located?
Yes | REPAIR or REPLACE any loose or broken component or fastener as needed. |
|---|---|
No | GO to F3 |
F3 CHECK THE SUSPECT SPEAKER FOR WATER INTRUSION
Inspect for watermarks. Check the:
Cone Magnet Basket
Are any watermarks present on the speaker?
Yes | VERIFY the water shield is in the correct location, REPAIR or REPLACE any trim, door, or speaker seal as required. DRY the speaker in question and TEST the system for normal operation. |
|---|---|
No | GO to F4 |
F4 ISOLATE SPEAKER TO VERIFY NOISE
Remove the suspect speaker from its location and leave the speaker connected to the harness. Hold the speaker away from any trim panel(s) and ensure the speaker is isolated from contact. Operate the audio system using digital media such as a CD or MP3.
Is the noise still present in the suspect speaker?
Yes | INSTALL a new speaker for the one in question. |
|---|---|
No | LOCATE the source of the noise and REPAIR as needed. |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.