[daisound]

Skylaw,
In your behavior, after $ spend on BT, it tells me the docking unit is better because of signal strength. This exactly I experience in last 24 years of using handset. BT only good for hand free purpose. It dose not give you the signal, the first priority of all. For now, it is best for me to retrofit with MIK BOX like my E320 with V551. most economical decision. Put the PDA SIM into V551 if I am going to drive for a while. Or just use my PDA to answer call for trip less than 15 minutes. BT interface only good for driver do not have docking device already installed in their car and excellent for phone upgrade. New PDA has multi-functions, but you can only use the basic phone function while you were driving. In the future, I think MB should plan to have BT in every car and also docking device with universal plugs and add-ons so most PDAs can be docked if desired. That will be the perfect improvement.