Need sound system help

[specialagentPK 10+ year member]

Ok I have a Fusion FCD-255 deck and so far just a set of Fusion 6.5's in the front with tweeters in the door not installed yet plus ordering some Infinity Kappas 4x6 for the back in a 01 GMC Sierra Ext Cab

What I would like to do is add tweeters in the D pillars in the back and a set of 2 10" subs under the rear seat.

So a few questions

1. What wattage sub do I need for the speakers. I assume I need a 4 Channel amp to run each speaker seperatley and what company should I go with please name a few.

2. For the tweeters, if I order a set seperatly do they come with that little box to run them(I don't know what this is called Crossover Box??)??

3. What is a good sub company as well and what wattage should the subs be rated at??

4. How many watts on an amp do I need to run the sub and again I assume I need a 2 channel amp??

5. Should I ditch the 4 ohm impedience front speakers and get some 2 ohm ones or should I find 4 ohm 4x6 rears or does it matter if the front and rear impedience are different.

If there is anything else I need please let me know or if I am setting it up wrong let me know what I need.

Also as for ratings on the truck it is a 145 amp alternator and dual battery setup

I have a limit of about 1500 and this system will mostly play rock music.

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[specialagentPK 10+ year member]

Ok now that I have decided on speakers and whatnot.

Here are my front components.

Morel Dotech MK2 6.5" Components

http://morelhifi.com/products/mob_2way_dotech.html

I am going to use this amp for them:

http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=2959

My Subs Are 2 of these:

http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=2926

And I will use this amp for them:

http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=2963

I am unsure if the amp for the subs is the correct amp to be using but it seems right. I will hook them both up to the same amp and that should cut the the rms power of the amp in half and if I am carefull with the gains I should be fine. If there are any faults with this please let me know as I need to order them today.

Also I am looking for an SQL system

 

[acold7dusta 10+ year member]

i think you can do alot better than 380 for that sub amp. keep lookin around, you can find a much better amp for that kind of money

edit: same with the speaker amp

 

[specialagentPK 10+ year member]

Mind helping me out with what to go with for amps??

How bout the amp that you are selling.