I was on bestbuy.com and all the website said that the subs wouldn't fit in my car..is this true? also how much would everything cost in total..subs, amp and installation? Thanks.
You won't have a problem getting subs installed in your jeep. The web site only says they won't fit because there isn't a factory location for the subs.
As for the installation costs, it really depends on what you are looking for. At my shop, we charge between 75 and 150 for a basic install. If you wanted something more complicated like fiberglass or molded amp racks it could cost a lot more.