OK, I've read that people have put subs and an amp in there car with the stock system and that all you need is an adapter. Where can I get this and how does it sound. I'm no sound guru or anything so I'm not gonna change my whole stock system, I just want more bass. Also if I do this should I get two separate sub boxes for two subs or just one. One last thing which is the best sub/amp combo. I plan on getting two tens. Sorry about all these questions I'm new to this sound stuff.