Well, my less than 1000 KM CX-5 fully loaded is rattling under the front center speaker. The rattle is probably due to the front speaker came loose or something came loose on the front windshield heater vent. Pressing the dash down killed the noise. Will be bringing it to the service center to have it fixed. I sure hope they don't need to tear open the whole dash. Does anybody have this issues? Try hitting around the center speaker area to see if anything rattles.