Three different phones...three problems with phone headunit connectivity....ultimately solved by recoginizing that the D3 has a seizure trying to transfer contacts if both the phone and the media BT profiles are connected. It is imperative that only the handsfree or phone profile is activated when trying to transfer contacts etc to the headunit. If the audio/media profile is enabled the unit will disconnect immedately when selecting "phonebook transfer". Once all of the contacts are transferred the phone should be unpaired and then re-paired using both phone and media profile as well so that A2DP functionality can be enjoyed.