It's not a latching issue, it latches tight without needing to slam the door. Sounds like the rattle is coming from the lower portion of the door. I thought it was the rear seat when I heard it driving, but then realized it gave off a "buzzing rattle" as I closed it.
The rattle in the dash is more of a buzz too, starts when I give it a certain amount of throttle taking out. When it's colder it will do it over joints in the road as well. It may be the bracket in the dash. Neither of the noises is affected AT ALL by the radio, which I thought was interesting.
The shaft issue I noticed hitting bumps turning, I realize it could be something else. Just a clunk when I hit a bump right.