For car audio installers looking to connect an amplifier to a factory head unit, this MTX AUDIO adapter converts speaker wires into 8V RCA outputs without requiring an external +12V power supply. Its 60 Ω input impedance ensures optimal compatibility with factory radios, while the 20 Hz to 20,000 Hz (± 0.5 dB) frequency response covers the entire audible spectrum. The Remote OUT output automatically generates a +12V / 100 mA signal from the speaker wires, triggering the automatic power-on and shut-off of the amplifier. A clean integration, without unnecessary wiring, for a professional installation in the cabin.