Car Sound System

I need help specifically with Amplifiers. My ride is a Jeep Grand Cherokee 96′ w/ out infinity system.
I want to get these items:

http://www.sonicelectronix.com/item_11346_Kicker+Solo-Baric+L7+08S12L74.html

http://www.sonicelectronix.com/item_13447_Infinity+Kappa+63.9i.html

This is my Current Stereo:

http://www.sonicelectronix.com/item_17768_Pioneer+DEH-P5100UB.html

Now, what amp should I get? I don’t really understand the crossovers and I just want the speakers and Sub amped. I won’t be needing a component system either.
I forgot I want 2 of the kappas…

Being a girl, naturally i know nothing about cars espesh car audio systems. What do i need to know, in general about buying a new system that is inexpensive but still sounds good. I know nothing about it so the simpler the better. What are subs, amps, face plates- yada yada yada.

Subwoofer: JBL GTO 1204BR HU: Pioneer Premier DEH-P600UB AMP: SOUNDSTREAM LW4.500 Rear: DUB MAG 256 100W RMS Front: Kenwood KFC-1051S 110W

First of all, my CD player in my car does NOT have an aux input. I heard there is a way to hook up an iPod to a car stereo system though the amp. I have subwoofers and an amplifier in my car. I would like to know exactly what I would need to buy in order to hook my iPod to my car stereo system.

Any help would be greatly appreciated.

I asked this question earlier about getting a car system for my 2008 Dodge Charger. I don’t know anything about audio systems and requirements. I just need help on finding a good audio system for less than 0 if possible a Kicker, Alipine, or Infinity. If you could list the name of each part of a system I should get like the sub, amp, etc. Please help me. Thanks.