I'm going to toss this out there because you're a dude that likes to research:
The best tool I have found so far for us 'mortals' to put together a sound system is crutchfield.com.
Even if you don't buy [anything] from them, it's a resource to help you decide what will fit without breaking out the death wheels and cutting torches.
Put in make, model, year, and start building an audio 'system' from components that [fit]. Pay attention the little detail links. They show you what's necessary for an install without hacking up harnesses. And of course, you always have the option of saying, "Screw that. I'm gonna do that piece my way".
IMO, it works better than the computer configurator on Newegg.