Well I agree with that you said. But i'm still confused why in the oem there is a 2 quantity for part 1 and I just realized that part 2 is referring to the inside of the trunk not the tailgate.
In this other diagram 16 is the whole bar that holds both lights and the button. And 14 is the number 1 from the other diagram so if that is the light cover then the housing for the light would be part 16 and that would have to be modified to fit the camera. And it's a little more then $14 ($75).In other words i need the TIS for that part and the rear camera install, To see how the thing is wired. If the size of the light cover is the same which i am pretty sure it is that's good for fitting but the back of the camera needs to be wired to the light and needs room. I may be over thinking something so any insight would be appreciated.