Well I finally moved up in the world and found a S4 for a price I simply couldn't refuse, and a manual too. The symphony 2 systems sounds nice However it lacks one critical feature in my mind and that is an aux port. Currently I'm using a bluetooth to cassette adapter that I found in the glovebox but that is a pain and the sound leaves something to be desired. What id like to know is if there was a later factory radio (out of a b7 or similar) that came with an aux port. I don't care about Bluetooth connectivity so I'm trying to keep it stock looking and the only aftermarket radio I would consider putting in there has been discontinued so id like to keep it in the family. I know there was a couple of nav units, did those come with aux ports? also if I buy an ebay radio or pull one from a junkyard can vcds be used to unlock the radio if I don't have the code?