Hello, recently my 2013 gs350 with just under 170,000 miles has been making a loud shaking noise that also comes with some rattling in the cabin, I can feel it on my floor board, door panel. It goes away completely when I turn the ac off. Not sure if it just getting over worked in the brutal Fl/Ga heat or if something is loose if any one has any idea that would be very appreciated.

here is a video of the noise.