I only played it for a few seconds to make sure it actually was the intro to Sweet Jane by The Velvet Underground and not some cover, since it has long been an object of fascination in alt rock circles. It was, I linked it and it might not have left as favorable an impression as it deserves.
http://www.youtube.com/watch?v=Tqyv87h_zNA
This is the one i have on an album somewhere in a closet. This is the definitive opening for the song.