Exactly what Tinders is saying, if the controls are not on the flat section of the centre console, next to the gear leaver, then it's not MMI, 2G, 3G or 3G+.
Controls on the dash itself (above the climate, below the display) are part of the radio system, it's not MMI, it's not even MOST BUS based. The fact that you even mention "Concert" suggests to me that it's not MMI and you are going to confirm the controls are above the climate control.
All you need to know: http://a6retrofit.tripod.com/articles/a4a5realmmi.html
Controls on the dash itself (above the climate, below the display) are part of the radio system, it's not MMI, it's not even MOST BUS based. The fact that you even mention "Concert" suggests to me that it's not MMI and you are going to confirm the controls are above the climate control.
All you need to know: http://a6retrofit.tripod.com/articles/a4a5realmmi.html