So I have noticed my rear driver door on my 2013 1500 quad has developed a rattle. I have pulled the door panel and put it back on with no change. Yesterday while I noticed the rattle I pressed against the speaker grill cover on the door skin and it went away. Today I pulled the panel and drove to work and no rattle so clearly its something with the panel. Ideas on fixing? I'm not inclined to dynamat the door! I have the 8.4N system but not the alpine upgrade.