Re-pinning OEM Audi plugs
The taillights on the B7 have different plugs than the B6; the B7plug is a tad deeper than the B6 plug. The new B7 plug utilizes five of the six available pins, while the B6 uses all six. The extra pin on the B6 connector is for the rear fog light; I'm still trying to figure out how to make it work on the B7.
You will save yourself a lot of trouble if you just pick up a de-pinning kit; I was using two flat head screwdrivers and cussing up a storm. After I found the tool kit, everything was a breeze.
New pin layout for driver side connector. Keep in mind, your wires will be flipped on the passenger side connector (e.g. pin #1 should be in pin #5).
The de-pinning toolkit is a lifesaver. An aftermarket kit is approximately $30-40 compared to $400 for an "OEM" kit.
By inserting the de-pinning tool you apply pressure on two little tabs that hold the pins in place. Once you've done this, a little tug will remove the pin from the connector.
