Audio wiring

Well, I would like to have 2 speakers of 40 watts each, 80 watts at each door. 2 80 or 100 watts speakers in the rear tray and 2 small speakers in front, above the dashboard, the tiny speakers, I don't know what they do, but they look very good.
Then with the power stages, I don't know which one to put them;
Can you hear the DVD of the car through the car speakers?
Subufer I can't put him in the trunk, I have 2 children and I need the space.
1º For the front door I need to make a drawer, and put it fiber and paint it, as the fiber occurs.
2nd I need to know the scheme and diameter of wiring
3 The wiring I want to put it in the middle of the car and the stages behind the rear seats
4 The car is a Peugeot 306 xnd
thanks in advance.
By the way, if the car is yours, it is very gua.

Good afternoon I feel the delay but the work does not leave me much free. 2. The cables for the speakers are 2.5mm free of oxygen, for the feeding of the 5mm free oxygen cable stage a fuse and fuse holder, RCA cable for the audio (your radius-CD has to carry at least one output RCA if you put only one stage, the stage can also be connected to the speakers of the speakers only that you have less risk of burning the speakers or the stage) The medium of the car must only take into account that the feeding of the stage do not have to be attached to the audio. 4. If your radio-CD has audio entrance you can hear the DVD in the car speakers. 5. Small speakers are tweeteres go from them you listen only to the acute music to listen to music with great effects. The car is my thanks. A greeting.