Use this adapter to make your installation of a subwoofer bass amplifier to the factory system faster with a cleaner install. Use this plug and play adapter so you don't have to cut or splice into the factory wiring. Provides rca output. Adjustable gain output. Not compatible with factory amplified stereo systems. Only works with factory non-amplified systems (no JBL/Synthesis, Bose, etc.). Connection is done at back of radio. Compatible vehicles: No external factory amp vehicles: Made for Ford: 2011-2020 Edge, 2013-2019 Escape , 2011-2019 Explorer , 2015-2020 F-150, 2013-2014 F-150 (excluding CD radio/no color screen), 2017-2019 F-250/350/450/550, 2011-2019 Fiesta , 2012-2018 Focus , 2013-2020 Fusion, 2015-2021 Mustang, 2019-2020 Ranger, 2015-2019 Transit, 2014 2015 2016 2017 2018 Transit Connect