Hey guys, the key idea idea is a great tip. I got mine from streetkeys.com, $20. I had a hard time finding a hardware store that was willing to cut it, or could do it correctly, but eventually I did, and the guy did it for free.
My problem is that when I program it, I'm pretty sure i do it right. But then I go into the computer, on the 2004 XLS model, and it still tells me that only 2 keys are registered. When you guys setup the third key, did it register on the computer too? I started the car with each key and let it run for about 5 minutes with each one, and the car ran fine, never shut off, I only had it in park though. I figured if the programming was no good on the new key, the car would shut off soon, right??h