Front component speaker installation
So, I've got a '15 Altima S, and am looking to help the factory stereo along...it SUCKS. No Bose, no nav, does have six speakers. I'm looking to replace the fronts with components, and put the aftermarket tweeter in the factory dash location and the woofer in the factory door opening. What I don't know is how the from speakers are wired. There's GOT to be a crossover/high pass filter for the speakers, but without pulling everything apart, I figured I'd ask and see what y'all might know. Ooooh...and how much of a pain would it be to wire in speakers for the rear door?