; Audi A6 3rd Gen (C6/4F)* Original radio options - InCarTec

There are multiple original radio options in the Audi A6 3rd Gen (C6/4F)*, which option is the original fitted system?

Audi A6 MMI BOSE (04-05) Audi A6 MMI BOSE (04-05)
Audi A6/Q7 MMI 2G standard sound system Audi A6/Q7 MMI 2G standard sound system
Audi A6/Q7 MMI Basic Audi A6/Q7 MMI Basic
Audi A6/Q7 MMI Basic Plus Audi A6/Q7 MMI Basic Plus
Audi A6/Q7 MMI BOSE (06>) Audi A6/Q7 MMI BOSE (06>)