Hi! I have a 2005 sl with ntg1 and v12 DVD map. I know there is now the v16 but reading around they say is not compatible with r230 due to a software change. This is very strange because ntg1 is the same of all other models so I really think is a mistake but before buy and try the DVD I would like to be sure that is really compatible with the r230. Have you try this DVD in a r230? Thank you in advance for the answers! Ps my comand doesn't have età in the map display and I don't know which head unit sw version has.