In the last week my truck developed an annoying rattle/squeak when driving the truck. I found that it was coming from the headliner (If you push on the headliner you can duplicate the noise). I thought it might be related to the cold outside temperatures (it has been below zero lately). I took it to the dealer and the service writer immediately said that it was not normal. They researched it on the FCA website and found that it is a known problem caused by the headliner clips. Ram has an updated coated clip that was made to correct the problem. They ordered them and will install them next week which requires dropping the headliner.