The instructions say remove the upper hatch inner panel and then the license plate lamp panel. Next step is to open the hatch and fit the upper ladder through the slot. It is a tight fit. Next fit the retainer using the left hinge bolt. When I tried to line up the holes at the bottom that it went to hell. Nothing I tried would allow the holes to line up and provide enough thread to install 3 previously removed 10mm nuts. The slot in the upper ladder bracket was not wide enough to clear the hinge pin so it had to come off. It wouldn't come off and caused some clear coat to get scratched trying. I had to remove both hinge bolts. With a cutoff tool and a file, the slot was widened. I reinstalled the ladder with both hinge bolts out. The holes were still off. One of the studs was hanging on the sheetmetal hole in the hatch. I had to smack the right side top of the ladder platform with a leather mallet to bend it downward. Finally, the holes lined up. I installed the remaining hardware being careful not to catch the lamp panel on the ladder bracket overhang. What should have taken 1 hour at most required 2.5 hours with all of the 'fixing'. The final product looks good and is functional but required way too much modification for a 'simple' $160 add-on part. In retrospect, the lower ladder should have had only 3 holes that required threaded inserts in the upper hatch instead of the convoluted bracketry even though it would have meant marking and drilling into the hatch.