Buzzzz
I hate the cold. It makes me keep the top up on the Miata. When the top is up I notice the annoying dash rattle I have. It is kinda like that light that (I think) VW Rabbits had to get you to up shift so you would save gas. It starts buzzing at 3000 RPM and increases in volume until I can’t stand it and shift, usually right around 4000 RPM.