"Cricket" in Polo Sedan's salon has been detected long ago by attentive drivers. For example, it has been noticed that the rear shelf sources may be the rear shelf in contact with the rear window, the front passenger plating, the button on the manual brake handle, the safety-belt latch, the side glazed rubber band. Due to air ducts at a speed of 90 to 100 km\h, a draught or whistling may occur.
