The problem with this type of issue is that each rattle, creak and squeak can come from a different part on each person’s car.
It could also be temperature related, in the cold weather trim contracts, witch could cause the noise, does the noise improve when the interior of the car warms up?.
I had a very small creak coming from my front passenger door, like most quiet noises its some thing only I seem to be able to hear, so I was very surprised when I took it into Lexes that there mechanic said that he had also herd it, he put it down to the noise coming from the rubber door trim and sprayed it with something that had to be left for 4 hours to soak in, this solved the problem for a few month but unfortunately the noise has come back, so I will have to get them to have another look when I have the car serviced in June.