I don't know of an easy way to do it...but you "could" write a
batch file that you keep on your desktop to copy the file from your phone when connected to the "Automatically Add to iTunes" folder.
So assuming there are no other easy ways to do it from any of the people here, you would need to find your Automatically Add to Itunes folder under
c:\users\
your name\My Music\iTunes\iTunes Media\Automatically Add to iTunes
Then find the folder on your phone when it's mounted as a drive letter...
then create the copy command like this
copy f:\AmazonMP3\*.* "c:\users\
your name\My Music\iTunes\iTunes Media\Automatically Add to iTunes\"
Take this and paste it into a new text file on your desktop, then rename the file extension from .txt to .bat
Maybe there is an easier way to do it though...anybody?