Bought the sub with an amp for about $210 in total. I wired it up to the stock stereo and everything works perfectly. I really like how strong the sub is for the cost. I read about it and everyone says that it is an amazing sub for the price. I also got a capacitor for it to help by supplying more power to it. It was about $80.
Place of Install
It's not hard to install it. Just look up a video on YouTube if you need some help or go to a place that installs stereos. You don't even need to change be stereo, you can keep it stock and wire the amp to the back speakers.