I just got mine in a few weeks ago from the Paddock. I also got the soundproofing material that goes under it.
I have bought carpet from them before and will again. 8)
Year One, Paddock, ect, pretty much all sell the same brand carpet (but they dont say on the page who it is). Its mostly all from Auto Custom Carpet company. Even Rock-Auto sells it (and they have it the cheapest that I can find by far).
I just installed Trim Parts carpet in my Dart, plenty of extra material to trim for a good fit, purchased it through www.nicksclassicparts.com excellent guy to deal with.