Does anyone know if its possible to incorporate the Nextel i730 cell phone into a 2001XK8 so thatthe phone can be dialed with the buttonson the dash board. If so, do you know whereI can find the instructions to hook it up? Has anyone done this before? If so does anyone know if the radio volume automatically mutes or turns down when the phone rings?Can the caller be heard through the car's stereo speakers? Is there a mic inside the car that picks up my side of the conversation so I don't have to handlethe phone while I'm driving?