There's an annoying buzzing/rattling sound apparently emanating from the passenger side when I encounter any kind of road imperfection (tar strip, pothole, transition from road to bridge, etc.) when the vehicle is over 45 mph. It doesn't occur when the car is at idle. It's hard to diagnose, since I'm by myself in the car 99% of the time. It seems to come from either the passenger door or a panel near the glove compartment. I've tried removing things from the passenger compartment, door wells, glove compartment, etc. but the noise remains. I put November 2016 just as a placeholder, but in reality it's been there since I bought the car brand new on June 3, 2016. The car HAS to be going at least 40-45 mph, because driving it yesterday over rough roads in/around Washington, DC, it didn't occur (and I was doing max 35 mph). It doesn't occur over smooth pavement at all, only bumps or places where road surfaces differ. I took the car in for its 1st oil change on 3/1/2017 and the dealer was unable to replicate the sound, even though they checked the door panels and engine compartment for the culprit. I was able to record the sound with my smartphone. Others have suggested checking the radio panel and the overhead storage compartment but I ruled both of those out (radio panel not rattling and storage compartment is empty). Would appreciate any help, this sound is very irritating considering the rest of the cabin is so quiet.