1500 bucks. And not sure of your listening tastes or levels. Will figure one to cover all of them. or as close as possible
Keeping the factory head unit may introduce some issues due to the inherent EQ in those systems. I suggest an off board processor. Either the Alpine H660, RF 360.2 or my favorite, the JBL MS8. it will re eq your factory outputs to flat. Allow you to run just about any configuration you want. and does Logic 7 encoding. Its pretty bad ass and has a built in amp that can drive all the speakers but the sub. It's not huge power but is adequate for most people. Will assume that you are not most people. Which explains the car.
This is going to cost you 600-800 bucks but lets set that aside for now.
Start with a power wire kit.
Wire kit: Take your pick. I love both.
Requires you to buy a fused distro block and a standard distro block for ground distro (not necessary though)
or this one:http://www.millionbuy.com/scoe3200.html
Just have to add the ground distro block.(again can get by without the ground distro.)
Have used both. For the money hard to beat. "ALMOST" 1/0 wire but good enough.
8" midbass drivers. Hands down, Dayton RS225 great sound, low distortion, great price.http://www.parts-express.com/pe/show...number=295-356
you can get the 4 ohm driver for about 10 bucks ea. more per. I like the 8 ohm myself. More efficient. Any difference in power will be unlikely to be heard.
Front speakers: I am going to choose a solid performer rather than a "brand name" giant:http://millionbuy.com/mbqrvf213.html
Subs: Remember, a sub is little more than an air pump in a vehicle.http://www.sonicelectronix.com/item_...-GTO1214D.html
Solid performer, good engineering a known name in high end audio. A single one of these or two in a ported enclosure will move you.
Get two of these in a 1.5cubic foot ported enclosure and you will be amazed. They love small ported enclosures. Often overlooked. Low distortion great output small enclosure.... Good price.
Again, subs are an often over analyzed component. The enclosure is THE MOST IMPORTANT part of a sub bass system. Followed by the midbass driver. Just about any brand in the right enclosure will make you happy.
Seriously. I swear!!
Going for watts per dollar here.http://www.audioque.com/aq/?page_id=26
Both good solid amps. Audioque has a huge bandwagon. There are cheaper and more expensive amps. I am going with ones that I have seen perform reliably.
Main speakers amp:http://www.sonicelectronix.com/item_...t-NAU-660.html
Reasoning behind this choice is it's an inexpensive 6 channel. Running the front two channels on the front speakers @50X2
bridging the rear 4 channels into 2 for the midbass 8" drivers for 100+ or so per driver.
JBL- MS-8 use paypal with a credit card for max protection. Never used THIS online store.http://www.autotoys.com/x/product.php?productid=18093
Depending on number of subs and component changes or other deals pricing should be ~1500 bucks. Maybe pick up a couple of sheets of Raammat/dynamat/second skin etc. Seal up any large openings on the inner doorskins to help those driver's SQ. Door treatments only really require about 25% coverage to make a difference. Any more than that and the law of diminishing returns comes crashing down fast. 25% is about where you get max performance for minimum dollar. (price/performance)
here is how I would set this up.
Head unit to JBL MS-8
install MB quart component set in factory front 6X8 speaker location. Use a couple of plastic cutting boards as baffles to mount speakers (make sure at least 3/8" thick. Double up if you gotta).
Replace factory 8" subs with the Dayton's. (here is where you can save money. keep factory 8" subs and try them out first before you buy Dayton's they should work fine as a midbass driver. Use rear factory speakers. they are going to be heavily processed by the MS-8. Powered by the MS-8.
get a prefab enclosure for sub or subs. Or make your own (I like doing this but not everybody has the tools or enjoys doing it.
Or at least that's how I would plan it out over a half a lunch break.
There are sure to be other deals out there. Do some research and don't get caught up in voodoo and brand magic that follows no scientific method or breaks the laws of physics. Just a waste of money.
Your results may vary.