Does your car have navigation? I have a 2005 325i with Assist/Bluetooth, and I use my E815 (similar to the V710) in the car. However, I haven't been able to use any voice commands--I've been using the R/T button, the "talking head", and the up/down arrows on the steering wheel to flip through the phonebook. If it's a number I don't have in my phonebook, I dial it on the phone, and let the car pick up the call.
Is there any trick to getting the car's voice recognition to work on a non-Navi car? Do non-Navi cars even accept voice commands?
I'd love to find a way to use the phone's voice dial features through the car, too...