I just got my truck today and I can finally cut a key open and see what the Immobilizer looks like. Here is the key being cut open.

Here the rubber is removed. You can see the Immobilizer peeking out on the right.

Here the plastic is being broken away and the Immobilizer is out.

Here it is completely apart.
Now I have to wait for the Switchblade key to arrive and then I will cut the key and install it and the Immobilizer into the new Switchblade FOB. I can't wait to see how it works. I'll post
pics as soon as I get it working.
John
Oh, I forgot to mention, I tried using the key with the Immobilizer about 6 inches away from the key and
it did NOT work. I tried again with the Immobilizer half a cm away from the key and it DID work. So it looks
like slow231 was right and the Immobilizer does not have to be touching the key to work. Yeah!