Just zipped up mine this morning. For those who are having trouble locating the cables from the close up pictures in this thread (I did), they are located off the rear of the engine in the middle.
You can do all the zip tieing from the top of the car, and I found it easier to do it from the driver side. I chose to use two zip ties (one for each) as I felt some resistance trying to push them together. Damage wise, my car has 33k miles, I could feel some deformation underneath but nothing as bad as JGT noticed.
Thanks for the tip!