Finally installed my Z2 I got for Christmas! Looks great - can't believe I waited this long to get one of these...
Anyway, I've been reading a lot of posts on here before I did the installation and I've seen a couple of threads about installing Zunes but none of them (that I saw) mentioned the Soundgate products:
http://www.soundgate.com/index.php?requ ... eferrer=1&
and if you want a wired remote:
http://www.soundgate.com/index.php?requ ... eferrer=1&
I think these are much easier than using the dock idea but of course this is more expensive.... I just thought I throw another idea out there for those who are looking to hook up their Zune to their Avics...