Hi guys, I have an SLK 350 2005 and basically I have been told that Ver. 10 DvD is not compatible for the SLK. I have been advised to go for the Ver. 9.0. Someone mentioned a 9.1. So not sure which one is the latest. Also I thought the part number for Sat Nav DvD is: B67823848/A1698275059 According to the 'CommandOnline' website the part number for the same version is: B67823887/A2118272164 So which one should I go for? See why I am confused? Please if someone can help.