2002
A4
3.0 6 speed
108 kilometres
Quattro

I have just purchased my first Audi. Was very happy with my purchase, but when I was driving home, this annoying beeping sound started, and proceeded to continue beeping in intervals varying between 30 seconds to 2 minutes. It is like a computer type beeping sound. I have concluded that if I turn my stereo off, the beeping stops, because the sound is coming out of the speakers (I can mostly hear it in the back somewhere). But because I am not a boring old fart and I like music when driving I like to have my stereo on. But this sound is really starting to bug me.

Is there any experienced Audi owners out there that may have an idea of what this beeping means?