4-Channel High-to-Low Level Line Output Converter with Remote Turn-On The MTLOC4 converts four factory speaker outputs into four RCA outputs, expanding your upgrade options. It offers selectable input impedance (20, 60, or 20k ohms) to prevent factory system errors. Effortless Amplifier ActivationAuto turn-on via audio detection, DC offset, or remote trigger allows plug-and-play convenience and reduces installation complexity. Built Tough and CompactConstructed with an anodized aluminum shell an