Im not very familiar with car audio and have a few questions before I dump some money into a system.

My roommate has a Phenoix Gold 600 watt 2 channel amp along with 2 10" Boston Acoustic 10LF Pro woofers.... He is willing to sell them to me for $200. What do I need to get this setup in my car? Is it as simple as disconnecting the stock sub/amp and connecting the aftermarket one? I want to keep everything looking stock on the inside so a new deck is out of the question.

Thanks in advance.