Dash board buzzing

[Kevin reid]

Hi folks looking for some help/ advice. I have a 06 lexus gs 300 with a bad intermittent buzzing sound coming from inside the dash, wondering if anyone else has had this problem 

[Bluemarlin]

When you say buzzzing, do you mean a vibration of some kind, or an electrical sound? If the former then I had similar on a previous car, which some strategically placed foam between dash a windscreen cured.

Would probably help if you gave a bit more information.

[Kevin reid]

Hi, it's not a creak, which my dash has a lot of, when it gets going it really buzzes. You would be mistaken for it sounding electrical, but the car is fine in that respect. Almost like resonating with certain revs, but inconsitent. Just don't know what to make of it. Just thought someone else might have had something similar

[DavidCM]

It might be a dry,dead leaf that has entered the air intake and vibrates as speed increases.

[superatticman]

Overall my Lexus is extremely quiet. There's a slight intermittent buzz that comes from the left hand size of the dash when running on rough roads but only when the car is cold. 

Best way to get to the bottom of interior noises is to have someone else drive the car over a rougher piece of road whilst you probe about to try and find the offender. They aren't always easy to track down and can sometimes be coming from a totally different area as to where you think!