Originally Posted by m_thompson
The car adds a header to the MP3 file and names it a BR4 file. I imagine this is so that people can't copy MP3s from any car. There was a program posted a while ago that would remove the header from the BR4 file and rename it to an MP3 file.
Thanks! Found the program. For those that are curious its located here: http://www.e90post.com/forums/showth...kup+mp3+to+usb