I really want to make my TSXs sound system much better. 5.1 dvd is just not useful. Now can I just get a deck and have it custom installed in some spot then have them attach everything to that head unit and have them power it through a power cord or something like that? anyways if that is too much then does them just tapping into it work and alow you to change everything? I want/have 2 amps 1 12inch sub and 6 door speakers. pls help. I don't mind paying extra for custom but I would just like a solid answer