1. Yes. See
http://www.xoutpost.com/articles.php?...ticle&artid=58 for one example.
2. Yes, the units from Germany are the same as the units in the U.S.
3. If you aren't a DIY'er, check out a competent high-end stereo installer. Show them the link above and see if they are up to the challenge. I'd plan on spending at least a grand on labor, and perhaps double or triple.
