Hi everyone. I got such a good response last time I asked a question,I thought I would ask another. My car is a 2005 CL600, I presume the navigation disc is the same age. If I purchase an upto date disc,is it just a simple matter of inserting the new disc? I intend to purchase the new disc from a MB dealer in Germany (£70 cheaper). This may be a simple question to a lot of people,however,I am no technophobe. Someone told me last week you can now get colour TV, whatever next. Thank you in advance for any help.