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Discussion Starter · #1 ·
Been reading through the forums and FAQs and still am a little confused on the meaning of the last letter in the part #s.

Saw some units for sale, part #s

4B0 035 192K


4B0 035 192E

I assume both are Nav Plus units that are CD based, not RNS-E. Just trying to understand what the difference between the E & K are, if any and what is right for my car, a 2002 A6 2.7T. Also, are there updates available for the navigation CDs, with more up to date maps and landmarks? If so, where can those updates be found?
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