Adding Bluetooth to '08 TT (Concert II)

[Bart Oleksy]

Finally managed to snag a TT (3.2L Quattro Coupe), and am quite happy 
with it except for the lack of integrated Bluetooth, mostly for phone 
calls.  Got used to that feature in our '07 Q7, and it's also in our 
replacement 2010 Q5.

I believe I have the Concert II stereo, with three buttons on either 
side for radio station presets and CD changer controls.

Would love some kind of system with little manual intervention needed, 
so adding a BT-FM modulator gizmo as the simplest/cheapest option isn't 
quite what I'm after.  Closest to the built-in system to the Q5/Q7 would 
be ideal.

Any suggestions on 'best' ways to proceed?  Can I look for an MMI-style 
head unit to swap in, or better off with a 3rd-party head deck, or is 
there a nice, fairly seamless way to add BT to the existing factory stereo?

Appreciate your advice - thanks!

Bart
2010 Q5 3.2L
2008 TT 3.2L Coupe