AUDIO CONTROL LC7iAUDIO CONTROL (LC7i) 6 CHANNEL LINE OUTPUT CONVERTER WITH ACCUBASS WANT TO ADD YOUR OWN SPEAKERS, SUBS, AND AMPS TO A FACTORY SYSTEM? AudioControl's LC7i 6 channel line output converter (LOC) with bass restoration allows you to add aftermarket amps, speakers, and subs to your car's factory radio, so you can enjoy better and more powerful sound without losing climate controls, voice activated functions, or other built in factory features. The LC7i