I've got a Spec V too, and I've got a couple questions for you.
1. Where did you find the aux in adapter, how much you paid it, and how did you install it?? I'm asking that because I searched a lot about it, and my results were that you can only find an adapter like that for the 2004-6 head unit models...!
2. The dvd drive you installed on your din panel, is it a usb extenal drive?
3. Is your carputer still in the trunk? How did you installed it?
4. Can you post pictures of it?