At 4007 was some "crickets problem" as we call it...The problem here was identified at the slider from the door, had a small move that allowed the door to have some noise when the car passed small bumps (the door moved up-down and plastic in touch with rubber made some cricket noise).
The fixes was:
1. The lock from door was moved with 1/2 mm inside car, in order to push the door to inside when is closed (force the door to close with a little more force)
2. Use grease for slider and also for door lock (usually helps 2-3 weeks, than replace grease).