; Audi A4 (B6) Original radio options - InCarTec

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There are multiple original radio options in the Audi A4 (B6), which option is the original fitted system?

Audi A4 Navi Plus RNS-D Audi A4 Navi Plus RNS-D
Audi A4 Navi Plus RNS-D BOSE Audi A4 Navi Plus RNS-D 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