2017+ Toyota Factory Radio Add A Subwoofer Amplifier Plug & Play Harness with RCA

Want to add a subwoofer to your original stereo?  Don’t want or know how to cut into your wiring?  Take the wiring guesswork out of the installation with this plug and play wire harness!  Installation is as easy as 1, 2, 3! Remove your OEM factory radio Unplug the OEM factory wiring and plug in this wire harness Reinstall your OEM factory radio What is it? This wire harness provides a line out converter for connection to one set of RCA cables to provide an audio signal to an external amplifier.  Also pre-installed on the harness is a remote amplifier turn on wire.  This wire, along with a set of RCA cables, is run to your aftermarket amplifier.  All that’s left for you to do is connect your own main power wire from your battery and a ground. What you will receive One (1) plug and play wire harness One (1) 10ft RCA cable Compatibility Notes -Audio volume to the amplifier can be adjusted by the dials on the harness.  For easier access we recommend using an external volume knob.