I really want it all
 

I have a 2005 BMW X5 with NAV, DSP, CDC, and Satellite radio. I also have the aux adapter installed in my glove box so that I could plug my IPOD into it. However, I would like to get fill IPOD integration like the DICE or BMW OEM modules offer without losing my CDC or Satellite radio. Has anyone figured out a way to have a full IPOD integration (display of ID3, and folder navigation from the NAV display) using the Aux input on the back of the NAV? I don't want to lose my satellite radio or CDC. Anyone seen anything?

There's nothing to figure out - AUX is not capable of what you are asking since it is merely a "dumb" audio input.

Otherwise, the DICE will integrate with NAV, Sirius and integrate with your NAV system perfectly. To even up the ante, there is the HD DICE that has HD Radio.

But - this will cost your CD Changer. ;)