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    1. · Registered
      Joined
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      69 Posts
      FIXED TOO! After messing around with this for months, I took a hint from @retiredmn and opened up the mirror stalk trim. Inside you will find a wiring harness that runs from inside the door and the up into the mirror through a circular port/grommet.

      I had some foam backer rod left over from another home improvement job and used it to stuff up into the hole and put a couple of other small pieces inside the mirror cavity (pressure fit).

      All the noise is gone! No more 43-55 MPH whistle.

      (Also - taping up the seams didn't make a difference - but the foam did).
       
    2. · Registered
      2021 Highlander Platinum
      Joined
      ·
      6 Posts
      FIXED TOO! After messing around with this for months, I took a hint from @retiredmn and opened up the mirror stalk trim. Inside you will find a wiring harness that runs from inside the door and the up into the mirror through a circular port/grommet.

      I had some foam backer rod left over from another home improvement job and used it to stuff up into the hole and put a couple of other small pieces inside the mirror cavity (pressure fit).

      All the noise is gone! No more 43-55 MPH whistle.

      (Also - taping up the seams didn't make a difference - but the foam did).
      Awesome. How did the mirror stalk trim come off? Any advice? I'm a bit afraid to pull that off!
       
    3. · Registered
      Joined
      ·
      47 Posts
      FIXED TOO! After messing around with this for months, I took a hint from @retiredmn and opened up the mirror stalk trim. Inside you will find a wiring harness that runs from inside the door and the up into the mirror through a circular port/grommet.

      I had some foam backer rod left over from another home improvement job and used it to stuff up into the hole and put a couple of other small pieces inside the mirror cavity (pressure fit).

      All the noise is gone! No more 43-55 MPH whistle.

      (Also - taping up the seams didn't make a difference - but the foam did).
      Did you have any additional wind noise that was reduced with this fix? Listened to your audio clip but mostly heard the whistle.
       
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