Speaker spacers
http://www.sonicelectronix.com/item_3324_Metra�4300.html
Toss the rear speakers since you don't need them. It'll also leave 2 holes open in the rear deck to allow more bass into the cabin.
0 gauge terminals for the big 3 wire cop 4 pair of these.
http://www.woofersetc.com...Style-Ring-Terminals.htm
Use the sound deadening on the doors, rear deck, and trunk lid. 1 roll is 64 sq. DO IT YOURSELF. Don't take it to a shop to get done or else you'll endup paying 250-300 just on deadening.
Also clean up the door before u lay it on...alcohol works.
Use about 25 on each door and use the resto n the rear deck and trunk lid.
should look like this when done
Remember to cover up all the holes in the door.
When u go to the shop, tell them to run the signal and power on opposite sides of the car to avoid interference.
Also tell them to run 0 gauge to the distrobution block, then 4 gauge to each amp.
Have the speakers high passed @ 70 hz. not 80.
When you get it installed, come back here so i can tell you how to set the gains to make sure everything is right.