Actually, I got it in October 2000, so it had to be made late summer or early fall 2000...at the beginning of the 2001 model year. I don't feel like going outside to look right now.
Anyway, since the PAC interface didn't work right either, there's probably something about either all the 2001 models or at least the first half of that year that they changed later on. Since they didn't start making those interfaces until what...summer 2003...they probably either don't know about the difference or they didn't bother supporting it.
Maybe some other people with 2001's that have interfaces will speak up...
