The Nissan Path

I'm gonna be installing a pioneer avic Z1 in my 07 pathfinder with the bose radio. I know how to do the wiring of the unit, my question is do i need anything special for the bose speakers/sub to work with the aftermarket head unit? or is it a straght forward install? also does anyone know where to buy the kit so i can maintain the steering wheel controls? I remember seeing them but cant find them at the moment. Thanks.