Hi all, been reading this thread closely as I have a 2008 MazdaSpeed3 I am wanting to do the exact same thing to. e.g. touchscreen lcd dashboard with a car computer and GPS. Can any of you point me towards more detailed information regarding the "under the hood' stuff such as where to place things, how to remove parts from the interior, wiring, etc. I have been searching around on my own as well, just hoping you may already have some resources you could point me towards. Thanks!