ok guys i want to add subs new 6x9's and 4x6's for the door i have a few thigns to ask i want to the subs to blend in with the trunk you know that style of carpit and what are some good makers of subs i dont want some thing crazy and can i still keep my factory deck?
For you amp. if you keep you factory radio you will need to buy a line level to low level converter.
as far as the spekers i wouldent replace the front factory ones with the same size (4x6) thers a adapter plate avaliable to put a 5.25 or 6.5 inch speaker.
as far as speaker i have concept cfa-600 6inch up front and infinty 693.7i 3 way 6x9s in the back the sund gret the back is amped and the front run off the hu. i have 2 concept sups and a obcon amp put 480w rms to the two subs in a obcon godzuiki box
hope this gives you ideas