Another thought on rattles, have you definitely ruled out the back seat? Mine can produce a pretty "heavy-sounding" rattle. Whenever it's in the VX, I always fold it forward to keep the noise down. I've forgotten and left the backrests upright before and couldn't wait to pull over and fold them forward. Pretty bad!
That's why I always call it the cargo door. Not the rear door; would never even consider talking about my back door around this crowd.![]()