You should have everything you need,if the plug from your old unit don't fit the new head unit just pull the plug ins from the old radio that are wired to its harness and put it on the new wiring harness you just got with the head unit. The color code should be a match. If not just go to wall mart the car audio area and tell them the yr make and model of your car and they will sell you a new one with the wiring diagram,follow it.
If you installed the first one you should have no problems. The plug ins are about 9 dollars.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.