The Universal Media Interface (UMI) for the 2009 C-Class and 2010 GLK-Class is now available to order from the factory for $1500! I have seen a lot of interest in this option since my last post and this will make it an even better value.
The UMI gives non-multimedia cars navigation, live traffic, ipod adaptor, usb port and bluetooth music streaming. It can be installed at the dealership for about $1850. If you know you want this option you can now order your car with it and it will be installed at the Vehicle Preparation Center (VPC) before it is shipped to the dealership. The VPC installation reduces the labor cost which is why it is less expensive when you order it than when you add it later.