Originally Posted by spoiler

I purchased a Kenwood KDC-X598, an antenna adaptor and a Metra 70-1786 wiring harness.

Everything but the rear woofer/subwoofer is working. After much searching I read a review of the harness and mentioned that the green & purple wires must go into the subwoofer ports and not the rear speaker ports as the Crossfire only has a subwoofer. Someone else said that it is actually a woofer. Regardless, I have tried what I think is every conceivable connection and still have no sound in the rear.