Thanks for the reply. Unfortunately, the noise occurs regardless of whether the seat is up or down. Also, it's not from the seatbelt buckle or from the cupholder....sounds like the noise is coming from inside the seat somewhere.
Again, it doesn't happen all the time, but most days I can hear it.
Another thing I might add is that it used to only occur on cold days, but now it doesn't seem like it's temperature dependent. Hot, cold, warm, or even cool weather and the noise still occurs. I may try taking a look at it when I get home today and if I can't figure it out or find anything I may have to try the dealer again.