I Just Finished The Comand Install in my W210. Everyone said It cant be done unless the car was built with it well ... Its Done and you cant tell that the car was not built without the comand!Its Not a Easy mod..but it can be done..For about half the cost of ordering the car With Comand!
If you have access to a euro epc for the parts..its no problem!
Contact Steve @ www.MBenz.nl for euro parts..
Steve can get ANY Euro Benz part you can think of!
I Have bought Several items without any problems!

And since the Interior was out I Installed Heated and Multicontour seats at the same time.adding the heat pads,wiring, switch,and the Lumbar pads,switch and hoses.Without any hints the car was not built that way!