New cd player=ughh

I just bought a new pioneer cd deck for my 2003 gt, i was just wondering before i get too far into it, what kind of parts/adapters am i looking at to get it working right (i have heard that you need a special adapter for the steering wheel controls)

The wiring adaptor and dash install kit should only be about $10-$15 each, and the adaptor for the steering wheel controls is gonna set you back about $50.