ZXSUM8 Summing Interface
The ZXSUM8™ Summing Interface provides complete integration of aftermarket audio products into a vehicle’s factory audio system, while adding a handy auxiliary-input jack.
Your factory signal is split. This speaker gets some of the bass. The other gets some of the treble, None of them get the whole acoustic story. The KICKER ZXSUM8 takes your factory speaker signal and combines it into a single, complete sound. Now your amps finally have every note they’ve awlways wanted.