Well, I just want to post my cheap way of having a hands-free car kit for my Treo 700wx.

1. SD card
2. Phone headphone 2.5 mm adapter (example: http://www.amazon.com/Palm-Treo-650-.../dp/B0006SK31M)
3. FM transmitter (example: http://www.amazon.com/Belkin-TuneCas...7103597&sr=8-3)

Since I have a 2GB of expansion memory, I run my Treo as a music center in my car. Since its also using the FM transmitter to 88.7, I hear everything on my car speaker. What's cool is that once a call comes in... it turns silences the music and now i can hear the phone call. :-)

Also, the mic on the Treo works awesome. Ive asked plenty of times.. and i get "i can hear you great. no problem".

Well, all this only cost me roughly under 50 dollars (i'm cheap.. i shopped around), and i can use it on any car. So I'm not stuck using it only on one car.

Anyways, I hope this cheap tip helps someone else.... at least you get a "Oh cool, I didnt know a Treo can do that" comment.