Upgrading my "premium" sound

[devove]

Hi just got a new BFmkII XR6T with premium sound, while being decent i want alot more.

I have heard the ford ICC is a bit tricky to just add components too so I was wondering what I would need and rough price for the following.

I have 2x Type S Alpine 12" woofers, and amp for them sitting in the garage. I was wondering how tricky is it to wire the amp up to the ICC? At the same time as this I would want to add another amp for the cabin speakers, aswell as replace the cabin cheapies with some premium speakers, I dont know who makes a decent 5x7 speaker though, so any help in where to look for them would be nice.

I also want to add DVD and Digital TV to the colour screen, I assume this is done via another headunit down the bottom of the ICC stack. I dont want to loose the normal ICC functions like its 6 stacker, am/fm climate control and my AUX ipod conection, I was hoping it could kind of be wired in like the factory ipod connecter so i simply push am or fm button a few times and the screen will show what ever is plugged in the video aux plug. then i can just return to normal ford icc when not watching a movie.

Also what is a good digital tv turner, i had an anolog one in my VU SS ute a year or so ago on alpine equipment and it was terrible and barely ever got a half clear picture.

Also when doing all this is it worth replacing the amp and factory woofer or removing it completely?

Sorry for so many questions and a terrible structure but i keep thinking of more things while i type.