wip99gt said:
To properly use that equalizer you'd need to run all your speakers off of amplifiers. When you start getting in to higher end stereos people will run 2+ amps. The crossover part would be a little useful for tuning the sub but the extra money would be much better spend on a better head unit which will have more options and a better internal amplifier for the rest of the speakers.
For a $500 price range and if you really want a subwoofer I'd do:
Subwoofer:
http://www.amazon.com/Rockford-Fosgate-R2S-1X10-10-Inch...
Amplifier:
http://www.amazon.com/Soundstream-PN1-450D-Monoblock-Mo...
Speakers:
http://www.amazon.com/gp/product/B0037PH2CY/ref=ox_sc_a...
Head Unit:
http://www.amazon.com/Pioneer-DEH-4200UB-Receiver-Displ...
With getting the head unit install kit and all the cable for the amplifier you'd be right around the $500 dollar mark. That setup will give you much better sound and be more power efficient. Also that head unit has a dedicated subwoofer rca output so you'll be able to tune the system better. Another perk is for a few dollars more you can get the bluetooth kit for the head unit. I didn't look in to the speakers because I am not sure what will fit in that car. You did pick components to remember that there are separate tweeters for each side. If your car does not have them that will be a bit more work to install. If you choose to do it yourself just ask me and I can give you some help on it like how to route the cables, set up the amp, etc.
Thank you for the recommendation on the items. The fact that I am in Japan right now makes 3/4 of the item you chose not available for shipping. The only item available for shipping is the speakers. Tried looking for the item model in a different site for Japan, however they did not have one.
I went into a car repair shop, pretty much one of the biggest popular car shop around where I live, and all of the components are over $100 in price which I assume is normal. I will likely buy from Amazon.
Do you think I'll be okay with having everything the same as my original choice with the speaker(+tweeter), subwoofer, amplifier, and just changing the head unit to something better?
I was looking at that 10 inch subwoofer before as well, however only the 12 inch was available for shipping.