SSCULLY, sweet info man! I just bought a 2006 Lariat SCrew, dealer forgot to give me the code. Dealer is 3 hours away. He told me I would have to bring it back to hook the truck up to the computer. I followed your page on this, and I found the module right away on the drivers side. Code is printed right on the tag!!
Additional info: enter your code to unlock doors, hit the 3-4 button to unlock all doors, hit 7-8 and 9-0 simultaneously to lock all doors.
You saved me bro!!