Disclaimer: I do not own an Xterra (YET!) so my information is based on past experience with other vehicles...

In regards to someone's comment about the change sliding around and eventually fallling out of the center console upper compartment. Perhaps try putting in some contact paper or that thin rubber stuff that you put inside of drawers and such to keep things in place. That may help. Plus you wont hear it bouncing around as much. Just a thought.