I have an F900BT I got in 2008 . As I am slowing getting amps and subs added to my ride . I found out the fader RCA's are not working . Thats the bad news , Good news is I have a 3 year ext war . So it looks like I am getting a new unit being put it . Any one know if the harnass is the same from the f900 to the x930BT?