2007 Vibe here. As the winter has gotten extremely cold here in the midwest, I've noticed that sometimes the car will make a rattle noise off and on for the first couple minutes of driving when it's really cold.
The noise sounds like it's coming from below the center console in between the front seats, and it's pretty loud. It only happens while the car is really cold for the first couple minutes of driving, and it happens only for a couple of seconds at a time randomly.
UPDATE: Here's a video of the noise: https://youtu.be/uXcMCGXUcZY
It happens more often when I'm accelerating. I'm taking it in to have a mechanic look at it, but I at least want to get some ideas from the community first.