how to wire a nk7 nokia handsfree kit to bmw?

hi anbody know how/ im taking my n k 7 nokia handsfree kit out of my ford 04 transit and intend on fitting it to the wifes 02 bmw 3 series , ive wored out the speekers but need to know wot to connect the blue ,black,red also witch to connect the yellow mute wire to any help mutch aprecated