1. First find the triangular decorative panel in the upper right corner of the door panel of Cadillac xt5 trunk and pry it open with a screwdriver.

2. Secondly, pry open the small cover plate of the groove with a flat screwdriver, and then twist the fixing screw with a cross screwdriver.

3. Finally, remove the fixing screws and pry open the groove at the bottom of the door panel.