07 escape

i like using the ford bypasses as you dont need to lose a key just program the module using two programmed keysIf i Can't Install it    I Don't need it   Joe

Is that a Ford dealer only product and how much are they?

555T: no idea. 555U: it's a universal bypass module, good for most type of cars with transponder-based systems. You'd put one of your spare keys inside this box. The key remains there forever, or at least until you decide to remove the remote starter from the car. (Again, for clarification: with the 556U, you lose the use of one of your keys.) 556S: Simply a 556U with a blank Ford key inside, and I think it probably comes with instructions on how to program the Ford key to the car. Another option: Get a 556U (or similar device from competing brands), and put your own Ford key inside. You can of course get a key at a Ford dealer, but there are other options.......mis-cut keys from locksmiths, junkyards, used car dealers, et cetera. Any late-model Ford key with the super-long head (Mazda, Ford, Mercury, Lincoln) should work, new or used.

yes they are a dealer item you can get them at the parts dept    there usually about 50 bucksIf i Can't Install it    I Don't need it   Joe

Your Escape has two theft deterrent systems installed. One is the content protection system that you heard go off accidentally. This system is the traditional 'alarm' that you heard honking the horn. You interface with this using the aftermarket system's factory alarm arm and disarm outputs by tapping into wires in the vehicle. The other is the passive antitheft system Ford uses to prevent hot wiring of the vehicle. You would typically interface this system with some type of module. You mention a couple of options in your post. Here are my thoughts on the different types of bypasses you listed. The placement of the pellet on the 555S is critical and can be a PITA. The key-in-a-box style has proven reliable for years. If you are going to use a key-in-a-box style I strongly recommend following Chris' advice and purchase an additional key for this purpose. There is another option for interfacing with the securilock system that ties directly into the data wiring eliminating the need to lose a key, fight with placing the pellet, or use a ring around the key cylinder. Here is one brand that works for your 07 Escape: link. I have used this kit almost exclusively since it was released and have not looked at any other style since. Also, if I remember correctly the 555T was an interface for GM VATS vehicles.Installer, IT support, and FFL. I need less hobbies.