Just got back from the dealer. That took almost 2 hours and I even told them where the rattle was coming from. They were able to replicate the rattle, so that was a win. Then they took 2 headrests from a truck on the showroom floor and put those in mine. Apparently, the rattle disappeared. They ordered me 2 new headrests. So, now I wait.
Just thought that I would followup in case it helps anyone else.
Brian