Okay so First off I am not the most educated person on stereos and what not, I know some basics though. When I got my jeep, I got the base package(130 head unit) so it did not come with an amp or a sub. I have been wanting at least some bass so I'm thinking about adding a sub and amp. But I don't know if it's easier to just go to somewhere and have them do it or if I can do it. So I was hoping one of you guys could help me out and tell me what I need to do in order to add a sub to my jeep.. Thank you!