; Audi A4 Cabriolet Original radio options - InCarTec

There are multiple original radio options in the Audi A4 Cabriolet, which option is the original fitted system?

Audi A4 Concert II+ Audi A4 Concert II+
Audi A4 Concert II+ BOSE Audi A4 Concert II+ BOSE
Audi A4 Navi Plus RNS-E Audi A4 Navi Plus RNS-E
Audi A4 Navi Plus RNS-E BOSE Audi A4 Navi Plus RNS-E BOSE
Audi A4 Symphony II+ Audi A4 Symphony II+
Audi A4 Symphony II+ BOSE Audi A4 Symphony II+ BOSE
Audi Concert II CD Audi Concert II CD
Audi Concert II CD BOSE Audi Concert II CD BOSE