Have a 91 300E (88,000 miles) and for a while I have been noticing that when I start the car cold I hear a rattling sound by the glove compartment. The sound goes away after the car warms up and as I start to drive. I emptied the glove compartment but no results. I performed a search but didn't find any threads. Is there some type of motor behind the glove compartment that could be making the noise because of the cold weather.