I got a Hertz DBA 200.3, as I needed to make an install, where I could remove the sub easy if needed the room in the trunk, so I just plug out the plug and remove the sub, and it's so easy to install, only need to pull the wire for power, and rest is taking from rear speaker, so when the amb gets the input from speaker wires it turns on, and off when you turn off soundsystem.What sub/amp did you use?