Lately while I've been driving the G, I hear this faint buzzing sound. I think it's coming from where the sunroof controller is, anyone experience something similar?

I've checked on the tapping sound that comes from the dash but it doesn't sound like a screwdriver and it can be heard at normal cruising speed (not 3000 rpm) when music is turned off.

I figured something might be loose?

 

Try removing your sunglasses and see if the buzz doesn't stop.