I got bf 2007 xr6 mk2 I didn’t find aux cable white one which have 6 ports I got the blue one there is nothing else. I just want to install aux for music . If in this model that cable didn’t come underneath please let me know there is just one more cable with four ports

it was an option... there's a plug underneath for phone and another one for auxiliary audio and you can make your own aux input if you want to by soldering in a female aux port to those relevant connections... keep in mind, it'll be crappy quality at best if you do that.

there is a four port socket I am not sure about that socket. Can you please little explain how can I install cable

there's two four-pin/port sockets. Instructions and discussion are in this thread -> https://www.fordxr6turbo.com/forum/topic/78581-adding-aux-cable-to-premium-sound-a-guide/?tab=comments#comment-1182938