Does anyone have above configuration? Interested in receptivity and quality of sound and compatability as I am picking up this phone over weekend with Cingular as provider. I am a little concerned about Bluetooth efficiency since my son had his V600 in my car and we had problems with reception, echo, and static. Yet when he used it w/o BT enabled,had great reception and super sound quality. Is BT a problem? I read many comments on this board re: problems members are having with this technology. I would be interested in practical experience with Razor V3 and BT in 03 M5. Thanks for your direction and help.