CD changer for X5 with DSP

[BatKing]

Hi everyone,

First, I have to say I learn a lot from you guys. amazing site. And I just got my first BMW 2 weeks ago and it is a 04 X5 4.4 with Navigation , DSP, sport and Primeum package.

However, the X doesn't come with CD changer and I got one from my friend as he has no use to it after he installed a Ipod.

After I read the installation instruction from the home page

http://www.xoutpost.com/articles/x5/s...er-bmw-x5.html

the CD changer I got only has the 6pin, 3 pin and coax cable connection outlet. however, from the instruction, if I have DSP, I don't need to connect the 6pin cable to the CD changer but need to connect a single coax digital audio cable.

Now, the only problem is I can't find the single coax digital audio cable from the left side panel in the trunck, Any suggestions?

Thanks.