first of all thatnk you all guy for your reply, my nav is female voice, and where is the mk's reciver isnt the cd or the dvd rom? i have a middle east DVD for rangrover 2005 model, and i like the new computer of bmw, it anyone can help me to upgrade my car for that, whats parts i need and can i find it used and cheapper in your country guys? PLS its a help and thanks again ...