You will need an interface like this for the steering wheel controls
Amazon.com: Brand New Pac Swi-jack Factory Steering Wheel Control Interface Kit for Alpine, Kenwood, Jvc, or Clarion **This Allows You to Replace Your Factory Radio and Still Use Your Factiry Steering Wheel Remote**: Electronics
Just a warning, if youre doing it yourself and it is your first time, it is a pain in tha arse to program. It will take a few times to program correctly. And definitely get a wiring harness for the radio. Especially on an expensive unit, so if you do get rid of the car you can just take it out and put the factory back in.