Right.

Right. But take another look: it'* not an orange wire; it'* an orange sleeve containing two white wires.

You can forget the broken-off end of the key that'* still in the old cylinder; the important part is the resistor chip on the piece of the key that you have. That is all you need to figure out the resistance that VATS wants to measure through the key, so your locksmith can pick the right key blank. (You don't have a second key?)

That _is_ how you repair it and that is how the system works; you won't "trick" your car at all. When you put the key in the ignition, the VATS circuit runs a current through the resistor in your key, using those white wires (current comes up the column through one wire, goes through the key and back down through the other wire), and checks to see that the key has the resistance that it expects to find.

It doesn't matter; the white wires are on either side of a loop going through your key cylinder.

Right.

I think so, because although you now have all the correct parts necessary to put it back together in working order, it'* still a pretty tricky process to do it right, not let a wire get munched in a tilt mechanism or whatever. A competent shop (or dealer) will have done this many times before.

The new key cylinder would normally be set up to match your existing key(*). If your only current key is broken, the locksmith is free to set up your new key cylinder with any key code, since you need not only a new cylinder but also a new key, right?

You get it reassembled. Again, it looks like you already have everything you need, only (with all due respect) I don't think you're familiar enough with the process to do it yourself. At minimum you should have a shop manual to guide you through the reassembly, but it'* probably a better use of your time to pay a pro to reassemble it for you, since when it'* done, I doubt it will ever need to come apart again. Good luck.