long sub, amp, and head unit

First posting here, and I'm sorry if I put this in the wrong spot!!
Here's the question

Ok I'm getting these subs. Ported box I believe it is, but the box isn't important right now. It's install questions I have.

https://www.crutchfield.com/p_2067C12VR4/Kicker-CompVR-07CVR124.html?search=kicker+cvr124&tp=111

and I will be hooking up with this amp hopefully. ( Bridging it to 340 X 2 at 4ohm )

https://www.hifisoundconnection.com/Shop/Control/Product/fp/SFV/30046/vpid/7112102/vpcsid/0/rid/123284

And not sure about head units but I'm liking this one because I can use my iPod touch on it.

https://www.crutchfield.com/p_077ITS301D/Valor-ITS-301D.html?showAll=Y&tp=5684&tab=detailed_info

So now the question. What tools will I need to connect everything. I thought about buying a crimping tool/ stereo tool kit. What should I get to connect everything good? and also what is the easiest way to connect everything, because everything I look up online talks about wiring, and cutting. If you can direct me to a good website to show how to do it is good too. Also what gauge wire should be used and what do the different gauges mean? I'll be putting all this in myself with a friend who knows what there doing, but I like being informed ahead of time. I'm just trying to get information from lots of sources. Thanks for the help, and sorry my question is so long.



-------------
Just learning.

First of all DON'T BUY THAT DECK!!!!! It's big, polished, shiny TURD!!! It's a piece of shiite! Really. That is the kind of deck that you see on a swap-meet table with a sign that says RETAIL: $500.00. YOU PAY $89.99!!! And then when you say "I'll take it", the guy turns around and grabs one out of a big, brown box of 144 that just came off the boat, with big "HECHO IN CHINA" stamps all over it. Dude... It's JUNK! If Crutchfield paid $50.00 cost, I'd be surprised. What feature(s) SPECIFICALLY attracted you to that deck? We will be able to find you something else in a reliable name for that money.

Secondly, you'll need a wiring harness adapter, a soldering iron, solder, heat gun, heat-shrink tubing, electrical tape, cutters, crimpers, some type of drill motor with a uni-bit (maybe), an old antenna whip is handy for pulling wires through firewalls and under carpet but is optional... Screwdrivers, sockets and wrenches, possibly. The list is difficult at best to completely fill out, and be 100% accurate for YOUR case, because every car will be different.

What else were you looking for, information-wise?

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

I liked the deck, because I could use my iPod touch, and I could use CDs also.

And also what gauge wires should I use?

-------------
Just learning.

1: There are 1000 decks out there with i -pod, -touch, -classic, -phone, -mini, -whateverthehellisnextfromstevejobs support AND will play CDs. ...and they'll be available in respected (let ALONE reliable) name brands. That's a TERRIBLE reason to finalize a decision for a deck... Did you read the reviews? It doesn't even CHARGE THE PORTABLE WHILE CONNECTED!!! That's crap design, especially considering the iPod uses between 5VDC and 30VDC to power itself externally! All the voltage regulation is built into the portable. Valor didn't even have to build it's own circuit to charge the portable! All they had to do was put a wire in the cord, and they decided not to do that, even! The Bluetooth (if you ever decide to use that feature) is flaky, at best.

2: You will use the gauge of wire necessary, based on the current needs of your system/amplifier:

<100A, use #6, with a 100A fuse within 18" of the battery.
100-150A, use #4, with a 150A fuse within 18" of the battery.

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Yea I didn't read the reviews. Didn't think to at all which is something I normally do for everything.

Thanks

-------------
Just learning.