I had technicar install the D3 with the bluetooth. They could not get the bluetooth to work. I found and downloaded from jetware software that helped but not fixed.

What is happening is the phone and bluetooth work together sometimes and i have to reload my phonebook everyday. Another thing is when the bluetooth is working and i am on a call and someonelse calls in the phone rings non stop thru the car speakers and i cant pick up the new call waiting call. Any help would be great, it has been a joke working with technicar.

just a thought....if you are losing the phonebook information when you shut off the car, the bt unit is probably connected to a power source that turns off when you shut off the car instead of constant power as it is supposed to be.