What kind of speakers and where are they located in Lincoln Ls premium sound systems.?

I have a 2004 Lincoln LS, I am getting ready to install a premium sound system. I would like to emulate the premium sound system that came optional on this car. I can not find a diagram of where the speakers are located at for the 12 speaker premium system or the THX certified 10 speaker system. I also would like to know what type and size speakers they are. Specifically, where are the tweeters positioned. How is it wired, with crossovers or amps. Any fellow Lincoln owners know, or anyone with knowledge please chime in. Where can I find a diagram? Thank you in advance.