This Line Output Converter is designed to work with OEM radios that have short circuit protection when adding an aftermarket amplifier. This eliminates the need to re-wire. Extremely easy to install with a new smaller easy to mount design and molded channel so zip ties will not slip. Product Features:Compatible with OEM radios that have short circuit protection.2 channel input. 55-watt maximum input.Separate level adjustment for each channel.Provides remote turn-on through speaker sense.