I want to hook up a DICE iPod unit to my '06 X5 (Nav, DSP, no CD Changer), but simply cannot find the CD-changer wiring.

I've installed one of these in my E46, so I know the basic procedures. I also understand that all of the US '06 models have 3-pin, 6-pin and DSP coax cables. I've watched the videos; the connectors always seem to be fairly easily discoverable, as they were in my E46. I've pulled most of the back end of my E53 apart, and while I've found the coax cable, there are no 3-pin or 6-pin connectors that are unused. There are a couple that are plugged in (see yellow arrows in photo below), but nothing else I can see that could possibly be the connectors. Any help is appreciated!