so i was in my trunk today trying to take my cd changer out since i dont need it anymore and i saw a parallel port, kinda looks like a printer cable. wondering what its used for...

 

I think the stock CD changer used it but I'm not sure, maybe your car came with the Elusive Microsoft package where you got a big oll 1980's printer in the trunk.

 

lol, no the stock cd changer uses the round connector under that

 

You guys didnt know that Microsoft joined up with Audi back in 1999??
This is the special plus to update your anti virus software for audi's.

 

well then my only other thought would be that it was for some Navi system (I Know the b5s4's could have a navi) and maybe you jsut got hte connector instead.

I'm just guessing here until someone who actually knows chimes in.

 

I thought that was the Phatbox connector?

 

EURO i think you might be right actually about that pahtbox. Ive looked online and connector looks just like the one in the picture above.
That box is sick

 

wtf is a Phatbox

 

The PhatBox is a digital music player that can interface with many different automobile head units. It can play unprotected WMA, MP3, Ogg Vorbis, FLAC, and AAC (with optional AAC plugin). The PhatBox emulates a CD Changer so it is fully controlled through the existing disc and track buttons on your head unit. Feedback is provided in the form of text to speech announcements through a system called SSA (Simple Stereo Architecture). This allows you to browse by playlist, album, artist, or genre and skip through discs by first-letter. Each P/A/A/G appears as a disc and each songs within the selected category appears as a track.

 

Its just a serial communication cable for dealer diagnostic equiptment. For what IDK, but I don't think they are used anymore. At least i think thats what i remember reading a couple times before.