I just bought a 2004 A8L and upgraded the MMI to what I believe is a 2010 or newer. My Nav and Sirius XM works great. I want to implement bluetooth. I see modules on ebay, however, they don't specify where it's located nor which module is correct for my car, w/ the upgrade. Which one should I get (model numbers??) Any help would be appreciated. I can do it myself, I just need some guidance from members. Thanks in advance.

 

Under the front passenger footwell in a black plastic box.
If you move the seat back and remove the sill trim and lift the carpet, you can unclip the box lid and pull it out.

 

Was wondering.... now that we know where the bluetooth wiring/hardware is located, what exactly is needed to get it to work? Part numbers, pics??

 

D3 - Retrofit Bluetooth to Replace Fixed Handset - A8 Parts Forum