Plasticky interior rattle at high RPM
 

Put the summer tires back on and took her out for a spin. Everything was great except there was a loud plasticky rattle in the cabin (at least I think it was interior) when RPM exceeded 4800. This was even when standing still and revving in neutral. For the love of me I could not locate it - all the bins and glove compartment were empty.

Anyone else had this issue? This was definitely not shifter rattle or "harsh" engine sound, more like a loose plastic bracket or something.

cabinlight?

update: I was wrong, it is definitely the shifter. I'll have the dealer take it apart and see if there's anything loose in there. So annoying.