Im about to upgrade my hole system whit alpine and focal speakers and amp I show details and pics ... I will start in Jan 2013 I'm trying to see where I'm going to locate my sub and I'm working right now whit location for the nest staging and image possible when I'm done whit that hem I start whit my focal project which me luck!!
http://images.wikia.com/boxster/images/b/b6/Boxster_speakers_update_article.pdf