I am selling my DICE iPod adapter with harness... works fine, i just decided to get the Intravee instead as it works with the latest iPod Classics (80Gb & 160Gb) better.
I don't have the changer in my car, so not 100% sure. But there doesn't *appear* to be a daisy chain link on the DICE, and since the unit uses the CD Changer harness, my gut reaction is that it doesn't.