Gilly,
Ooops, just changed my profile. I just swapped the 99 for a 2000 a few weeks ago. The 99 had one too many "bugs".....
As for the phone, I just installed the Navigation system, and part of the install was a splitter the included a input for the cell phone. So I am assuming that antenna is a combination one. I know that you can base it on looks, but its identical to the ones on the 2001. When I installed the navigation system there was no antenna at all, just the rubber plug in the roof. I'm a bit confused now as to what I can or can not put in my truck. I prefer to have the timeport. If the wiring is incorrect for the antenna, that should be updateable? What are your thoughts on this?