Glad you got one, it is really sturdily built. I fitted my one with no problems. Just be careful that the measurements you make are correct as we would not want the misplaced holes visible later. As you can see the holes to screw the adapters in are already behind the carpeting on the rear of the bulkhead. I cut the carpet with a hole saw in a portable hand drill, the hole is a little oversize but just a little, cutting it by hand seemed like a little too much work.
Locate these holes as the instructions show and to prove you are in the correct spot push a sharp scriber through the center point you have located. Keeping the scriber at the same depth move it left to right and up and down, if you are in the center the scriber will touch the sides of the hole and travel the same amount in each direction. I found that I was out a little this way and corrected my center and hit it dead right.
When you screw in the adapter plugs make sure they go in all the way, they are hard at first then go real easy and you think you have stripped the thread.
The latch holes are easy to do, just do them as shown and the trickiest part is find the hole in the bracket to screw into, just put the screw through the hole, rotate the bracket until it hits the screw, pull the screw back and rotate the bracket with the screw rubbing on it, you should find the screw jump as it falls partly into the threaded hole.
I will attach a photo that shows the holes you are trying to locate on the bulkhead.