Q7 2007 Bluetooth upgrade

[Clayton]

I have lost my Audi virginity with a Q7 S Line that is in fantastic condition for a 12 year old car.

i like so much about it I think I will be a Q7 man for a long time. 

My only neg on the car is that it has no Bluetooth for mobile phone connection.

i do have a dsp audio pack that allows for a music player to be connected in the armrest in a lead but that’s it.

after some research on the web I can find a Bluetooth module that could solve the issue but I don’t see a harness for it under the drivers seat.

can someone please advise on my best route to install Bluetooth through the car audio system?