Just purchased this head unit and amp for my convertible, and LOVE IT! Didn't need the amp, the radio has enough power to push 4 speakers and two dash tweeters. Controls take some learning and getting used to, but it's nice to have something to grow into. It's got everything I needed (USB, AUX input), and has the HD tuner built in. The Bluetooth will come in handy in the future. A great unit at a great price!