For ages, I had a similar rattle/buzzing from around the A pillar/glove box/passenger door area, drove me nuts. It was most apparent at around 1500 rpm, so initially thought it might be the wastegate rattle. Manipulation and gentle pressure (pushing in/out) applied to the long piece of door trim (down side of glove box) remedied it, eventually.
The sunglasses storage in the roof can also result in a buzzing noise that sounds like it's coming from round there so maybe check that. I also had creaky door seals which caused rattling but Krytox sorted them.
