I have a question or two...
Did your stock radio work at all prior to getting the new one?
Are you concerned that the new radio you purchased won't work in your car b/c of what?
Do you have a non-factory HU installed as well?
Here's some answers to your questions...to the best of my knowledge.
You should be able to test it by connecting the wiring harness to the new radio before installing...
Installing the radio...mine was shoved down in behind the console where my current HU is now as I needed it for my keyless entry as well.
You shouldn't need any special tools as far as I can remember.
I'm gonna send one of our I.C.E. experts here to see if they can answer your questions better than I can...

Good luck!