When I am working on or cleaning my car I like to listen to music. To have the music play you need to have the key in the accessory position. This causes the door buzzer to go off and it doesn't keep a good beat 99.983% of the time so I removed it. Now I forget to turn my lights off occasionally. Although I've never drained my battery, and it's been 9 months, I decided it was time to figure out a better solution. I had my cluster out today and decided to figure out how to make the buzzer come on only if the headlights were on.

As far as I know this will only work on the 100, A6s have a different buzzer that's built into the cluster.

While the key was in the accessory position I covered up one pin until the noise stopped. Just like shown in the picture below 85 is the pin that disables the buzzer in the accessory position. If you only cover up this pin when the key is in the on position it will still buzz.

<img src="http://img214.imageshack.us/img214/8333/doorbuzzermodgv9.jpg">

Next I found that pin 15 controlled the on position. I ripped both the pins out instead of putting tape over them to finalize the deal. Problem solved!!!

<img src="http://img207.imageshack.us/img207/1016/doorbuzzermod2lh7.jpg">

With both these pins gone the headlight warning still comes on whether the car is on, off, or in accessory mode.

"I'm seeing some very innovative plays here."
<IMG SRC="http://pictureposter.audiworld.com/24762/doorbuzzermod2lh7.jpg">

it will play for one hour with no key in the ignition. If you need another hour push the button again.