Answers to first round of questions...
INTENSE1... Yes, the NAV output will be enough to run the voice speaker. BUT... you must be very careful about where you mount the speaker(s). We hooked up the original 1" tweeters (both of them) to the NAV speaker output. It was not extremely loud, but loud enough to be heard with the stereo muted. However, we then mounted those two speakers in the A-pillar... figured this would be pretty slick as it keeps them hid. Well, the volume is not enough to carry the voice
through the A-pillar material. So, we're not looking to have a small speaker surface mounted up front somewhere or tucking a 4x6 up under the dash.
Bubble... The Metra Dash Kit you need is #99-7402. I do not know if that is the same one pictured in the link you posted, but it definitely looks the same. For the DDX7015, all you need is the faceplate. The stereo attaches to the factory mounts and bolts right in. My dash kit was comped to me as part of the bigger purchase. All components bought from
Freeman's Car Stereo in Gastonia, NC. If you call them, ask for Rob Lamb and tell him Andy, the guy who just installed a DDX7015 in a 350Z sent you. He'll know who I am.
z-incognito... Let me know how the Focals sound... I'm a little disappointed with the Kenwood speakers. They're not bad, I just think they could be better. Hoping the addition of a sub will clean things up later.
On a quick review note... I'm very happy with the DDX7015. It has a vast array of functionality and is easy to manipulate once you are familiar with the screens. If you get one, definitely spend about an hour in your driveway playing with it and figuring out how to navigate using the touch screen. No need to try to figure out things while you drive and potentially have an accident.
Only real disappointment so far is that my local radio tuner does not pick up as well as the factory unit did. Hoping this is because the antenna wire came loose during the install or something. If not, it's not a terribly big deal since I have Sirius now. Just is nice for local traffic and news.
I'll keep an eye on this thread in case there are more questions. Sorry folks, I didn't think to take pics during the install. If I have to go back in for the antenna wire, I'll be sure to grab some pis then.