Question about my 2001 X5's DSP System

[moxiefreak]

Good morning,

I'm anxiously awaiting the arrival of my new iceLink Plus for my 2001 X5 with DSP and w/o NAV. I bought my vehicle through the certified pre-owned program and I suspect that it originally came with a CD changer that has since been removed. While inspecting the wiring and equipment in the rear driver's side, I came across a number of connectors that I'm curious about.

First of all, there is a coax input into the amp that has nothing attached to it:



There are also three bundles of wires that plug into the amp. In addition, there is a coax wire that is not presently connected to anything:



Should the coax be plugged into the amp? Does it not matter? I'm suspecting the latter since the system seems to work fine without this connection, but it has me curious as to what is supposed to plug into what.

Thanks for your help!