I have the Pioneer AVIC-Z1 dvd headunit in my car with the handsfree kit. I set up the Treo 700p with this headunit and it worked flawlessly. I just upgraded to the 700wx and now I am still able to pair the device but after about a minute the screen shows the device is disconnected. No sound on the Treo700wx if I put it up to my ear.

I have tried paring up the phone to the navigation unit countless times and it always seemlessly detects the phone when I get in the car. I can answer and make calls, but it always disconnects after about a minute.

This is so frustrating... the perfect device has one flaw -- where the 700p excelled for me.