I've checked the Official Found a Rattle Thread, but could not find a report on a resonant buzzing ~3,200 rpm. I finally located it to the fuel filter/sensor inside the trunk. I tightened the three screws, which were lose but that had no effect. If I press on the circular cover it stops buzzing, but I was wondering it anyone had a fix for this. Thanks!

 

This has been covered in other forums, but possible solution - what worked for me - was putting a sheet of dynamat over the cover.

-Towels