i've connected the USB/ Audio cable to the Z110 and I figured I would be able to connect my Zune HD to it after I installed it to be able to listen to my music. I know it won't control or display my music, I just wanted it to charge the Zune and use the mini jack as the Aux input like i have in many other head units in the past. But when I tried this..I got no charge from the unit, and no sound output either. Am I missing something here?

Try setting the AV1 input from IPOD to VIDEO.

finally got around to giving that a try. Sure enough it worked. I had actually already tried that in the menu, but what I didn't realize was that I had to select it, and then back all the way out for it to take effect. Otherwise it just kept it on the previous settings. Once I did though, the AV1 slot lit up and my zune is working and charging once again. now to just hook the dock up to it and see what happens.

now to just hook the dock up to it and see what happens.

Hi I was wonder if you tried this yet? If I can control my zune from the head unit I'd be the happiest person ever. (because my wife would be happy)

You cant control the Zune from the head unit. If you want full control, you'll need to get an iPod.