Rattle Drivers Door

A slight rattle has started near locking part but all is tight nothing loose. Noticed a slight noise from this wiring cover on rear door. Have attached picture. Anyone had this problem

Hi jamsie

The picture you show is of flexible conduit that carries the wiring for the locks and windows, its unlikely that this is the cause if the electrics are working for that door.

When do you hear the sound, when driving or when open and closing the door?

Does the window still open and close correctly?

Have you tried moving the wiring conduit to see if you can encourage the noise to show itself?

If the noise is only apparent while driving, you will need the help of another person with a good ear to listen out and investigate while you drive to get a better idea where the sound is coming from.

It seems to be at door and its when I drive over rough road