I am looking for some help identifying a road noise on my 02 Disco, it sounds like plastic on plastic rubbing... only happens at highway speeds. I initially thoguht it was the trim right by the door on the floor... Took that out and the noise continued.

Upon inspection of the exterior the gutter corner trim is cracked and 'very' loose. I think - maybe - this could be it. Any suggestions?

If it is the corner trim, is this something easy to replace? Thanks for the help.

Cheers!!