I did the DSP bypass thing and got fullrange RCA output.

My question now is about the CD changer.
There is no sound but it shows up on the nav screen.
I know i have to use the analog 6 pin harness on the back of the changer but where do i get this cable and where does the other end plug into?

On the back of my Nav screen there are 2 plugs (blue+white) and there is no place to plug in a changer.

Ive done searches but no one seems to give a straightforward answer.
???