I am sure it was nothing, but it keeps bugging me.......

I was driving to work this morning when out of no where, there is a loud plastic pop/click sound from the center console (radio/climate area). It sounded like some one through a rock from the back seat and hit the front plastic. Radio still kept on working, no smoke, no smells, no indicator lights. Should I be concerned, or could this really just be plastic creaking like it does sometimes? It was loud though.

Thoughts?