I just got a new/used Nissan Altima, and the factory stuff is naturally garbage, so I'm upgrading. However, since my passion has always been home theater, I know next to nothing about car audio. Still, I've chosen my head unit. It's the Panasonic CQ-DFX983U. I chose it because it was the only HU that seemed to have everything I wanted (Sirius, MP3/WMA, hi-res dot-matrix display). But now that I'm on speaker selection I'm stymied. First of all, for now I will only be using the head units internal amps. I've been looking for something that will be a no-brainer to install and Crutchfield's web site shows me that there are some Rockford Fosgate speakers that will fit my car nicely... with a catch. The front speakers would have to be component (mid/woof in door, tweeter mounted elsewhere). For my rear deck speakers I have the choice between some all-in-one 2-ways from RF or components as well. So here are my questions: 1. Does Rockford Fosgate make good speakers? I know they're known for their amps and subs, but I don't know much about their speakers. 2. Do separates make a big difference in sound? Are they harder to install? How critical is tweeter placement? 3. If I go with Components in the front, must I also do so for the rear? Would there be an advantage/disadvantage either way. 4. Finally, is there a Car Audio forum like the HTF that anyone here recommends? Thanks in advance for any help you kind folks can give me. -Lyle J.P.