W.H/AU C0U1. C0U4. Nut. 99. A Component that helps Hold The D Pillar Trim Panel to its Mounting Surface. A Rubber Ring with a Hole in The which provides Protection Through which Quarter Panel Trim Panel related components Through. C0U4. Exterior Door Handle. High Mount Stop Light. Liftgate Trim Cover. Securing The Interior Door Handle. Screw Grommet. A Threaded Rod with a Drive Head (such as Hex. 12 Point. torx. etc) on One End used to secure The Door Lock Actuator to its Mounting Point.