It will fit, if its a double DIN, you'll have to come up with a bracket for the back to secure it. If its a single DIN, you should be able to use the OEM bracket. The plugs are different, so you'll need a harness adapter to plug into your car, and another adapter that will plug into the back of the new radio... the 2 harness' will connect to eachother, its simply a matter of matching colors.
www.parts-express.com has both the adapters needed.