Start out here to identify those wires.
Radio wiring colors
I believe your limited to a single DIN (2" tall) head unit with this year.
So after that you'll need an install kit to secure it.
Only thing that my search turned up for an aftermarket kit is
Scosche FCJ1270AB Multi-Purpose Kit
That's just a quick search. Describe your dash. Do you have a box opening with two circles or just a box opening? does the dash trim look complete in this area or does it look like something besides just the head unit is missing?