I thought I would mention the good luck I had with Amazingkeys.com and their blank keys with the chip inside. My dealer wanted $185 for the key to my '08 3500. I contacted Amazingkeys.com and ordered their key for $24. 99. The key and instructions arrived one day later. I followed their easy to understand instructions. I took the key to a local locksmith to have the key cut and then followed the in vehicle programing instructions. Except for one confirmation chime at the end of the process, which I did not receive, the programing went without incident. The key works perfectly. Just a reminder the key must be used to manually unlock the door. After that it acts just like one of the two original keys that comes with the truck.