This new Zune HD that's coming out in Sept is making me drool and I'm really really thinking of replacing my iPod Touch when it comes out.

Rather not start a Zune vs. iPod discussion so here's what I'm looking for:

1. Any Zune users currently use a stock head-unit integration device like a bunch of us do with our iPods? I currently use the USA-SPEC version for my iPod in to my BOSE stereo and would like to know if same thing exists for our G's and Zunes.

2. If it does exist, does it have the OEM steering wheel track skip/volume controls like the USA SPEC does?

3. I know nothing about Zune cable connections but are they pretty much similar to how 'most' iPod cables will be backward/forward compatible?

Thanks!