I installed the system on a 2012 F 150 XLT. Since the video suggested was exactly my model it was very helpful. Access on this model is pretty simple. Harness is plug and play but for two simple wire connections at the diagnostic port under the lower dash plate. Don't let the wiring diagram provided intimidate you. You really only need the programming instructions. Remember you must have BOTH oem keys for the system to program. There are lots of extra wires on the harness that you won't use. System works with both OEM keys once programmed. You will notice a brief delay upon start sequence but that's just how it operates. Only a few seconds but it might make you think it didn't work when you first use it. I'm very satisfied with it. You won't have to go to a dealer for anything in the programming. This was one of the reasons I decided on this system. It's well done with adequate information for a novice to install as long as you are handy with minor electrical connection and removing a few small screws and clips.

Not a good book. No tips from experts. Plenty of typos throughout. Practice test is nothing like the real thing. Get a different book. No information about guarantee to pass first time like it says on the cover.