2012 STI Stereo Build with OEM NAV H/U

[Lateralis]

Ok 1st off I tend to ramble alot and my thoughts might be a bit scatterd so I appologive before hand.

So I just got my 2nd Subaru, a 2012 sti ltd with the nav pkg. I love the stock H/U as it does EVERYTHING. Bluetooth, HD radio, Ipod, Aux-in, XM, everything that I would ever need in one nice little pkg. However, the stock speakers need to go so that I can obtain musical euphoria.

Before I got rid of my old wrx I took out all of my stereo equipment.
2 sets of JL Audio XR-650csi
1 set of JL Audio XR-650cxi
2 JL Audio 12w6v2-d4's
2 Alpine PDX 4.100
2 Alpine PDX 1.600
Eclipse AVN5510

That set up that I was running was overkill, but awesome.

What I'm looking to do with the new car is Run 3 way components in the front, either leave the rears stock or put in the xr-650cxi's, and run 1 of the 12w6v2's.

For the 3 ways up front I'm considering the Focal 165-VR3's. I don't have alot of experience with them, but I hear great things about the Focal component setups.

As for making this work I need a sound processor. I've ruled out using a LOC and more specifically something like the Audiocontrol LC6 or LC8. I'm basing that decision off of the stock H/U DSP. With the upgraded speakers and amplifiers all the crap that was covered up by the inability of the stock speakers to reproduced is going to come out and sound like complete crap. Along with that would be Bass control. Most oem h/u dsp will muddle out bass for the most part as volume goes up. With all this being said I need to cancle out the stock unit dsp and get that flat eq and the only way I'm going to get that is with a aftermarket sound processor.

The one's that I've looked into so far are the JL Audio Clean Sweep, JBL MS-8, and the Alpine PXE-H660. Alpine also has something new that I think is supposed to replace the PXE-H660, but from what I can tell it is not on sale yet.

I have NO experience with sound processors at all and actually have never seen how they are set up. Also since I'm going to run 3-way components up front I think it just made things even trickier.

Ok on with the questions.

1: Now I'm guessing that my '12 is like most others and does not come stock with amps therefore making everything out of the H/U speaker level signals. Where are people taping into these lines? Are they splicing them right at the radio harness or what?

2: What would you recomend for sound processor considering my overall goals?

3: Do sound processors remove the need for the crossover provided with the speaker sets? I noticed that some of them ( JBL MS-8 ) say that they have built in crossover point/slopes.

4: If the above is "yes" would I be better off mix matching components than just buying a complete set and what would your speaker recomendations be?

5: Do sound processors remove the ability to control volume from the H/U? I can deal with having to open the glove box to deal wit the EQ but having a remote volume knob seperate from the H/U is NOT an option I'm willing to consider.

Lastly I'm not really on a budget but not looking for stuff that is stupid expensive. I will post my build in here once I start it.

Thanks for your opinions guys!