My friend just had an Alpine S 12 installed with a 200 watt monobloc amp, powered with an Alpine head unit. He doesn't listen to rap, but even on the nu-metal tracks, the bass is so weak its almost hard to notice.
I think S type is 100 watts handling. Get a monobloc with at least that much wattage, but try to get more. More headroom is better for your sub. You'll need RCA connectors to run from the head to the amp, then wire to go from the amp to your sub. If you haven't already wired the battery terminal, make sure you have an inline fuse so you don't wreck your system. Get a box for the sub, ofcourse.