04Baby_S

Hey everyone, i have a the (254) MB audio 30 radio, with (531) comand aps, plus the (810) logic 7 surround sound system. i want to change the radio to the navigation radio. The issue is, my stock radio has 3 plugs, and the nav has 2, plus some smaller ones. How can i get this to work. Also, there is a phone jack in the center arm rest, what do i need for this. Thanks in advance...