I just sent Crutchfield a long email correcting them on their Crossfire after market install instructions...what they fail to tell you is that with the Scosche harness you "should" connect the pink wire to the Blue/white wire (remote control ) of the Pioneer harness...this supplies power to the factory amp in the Crossfire. Then everything works...amp...subwoofers...

Maybe you already found this out...hope so before you spent more $$.