Hello all. I am probably one of the biggest noobs you'll meet when it comes to a cars electronics. However I'm really interested in upgrading the headunit in my FRS. I was considering the Pioneer AppRadio 3. However this is the first time I've ever done this mod and I'm a little confused on what exactly is needed. My question is, once I buy the radio itself and whatever contents are in the box, is there anything else that's needed? I know with my first car it was a little more complex cuz there was adapters needed for the steering wheel controls and all this yada yada. I'm thinking it should probably be simpler for the FRS but I'm not sure what else, if anything, is needed? Any help here from any of our car tech guru's would be greatly appreciated

Link to headunit:
http://www.pioneerelectronics.com/PU...28SPH-DA210%29