I am very interested in purchasing a droid x. Question about phone call audio in the car dock.... Can the phone play audio through the vehicle speakers with the aux port and use its own microphone to do speakerphone or was this obvious feature totally passed over? I am not familiar with the google android OS AT ALL! Is this something that someone may have a hack or application for the in the future if it is not possible? Without bluetooth, is the built in speaker decent enough to do speakerphone if the above is not the case? If there is an incoming call answered, will the phone silence an app such as pandora for the duration of the call? Thirdly, I assume a good bluetooth device would solve both of the above if they are not possible? Thanks everyone!