How to take off the side steps

[tower]

Sorry but taking photographs depicting the whole procedure would be much more work than actually performing this simple procedure. If you think yourself that inept, have the dealer do it for you the first time on a hoist and watch the tech do it. I have no idea why you want to "keep an eye on the parking break cable". If you don't bother it, it won't bother you. It runs parallel and adjacent to one of the frame rails, but you don't need to concern yourself with it. You are way over-thinking a very simple procedure which is about as complex as unscrewing a few light bulbs.