How difficult is it to convert a CD/HK 06 Cabrio to having the Nav system? Can you use other year nav systems (03 for example) and how difficult is the entire conversion?

(I know I'd have to get a speedo for the steering wheel as well)

 

There are a ton of threads on this. It is not an easy or a cheap conversion. best advice is to skip it and buy a Nav radio unit or a Tom Tom.

 

Hmm. I did a search first and got no real results

 

i'd like to go the other way. 03 mcs with nav change to large speedo. need advise.