What is the best way to add bass to my factory honda accord radio?

I want to add bass to my factory honda accord radio. is it better to go with a powered sub(like a bazooka) or a separate amp with sub? i dont need alot of bass, maybe just a 8" sub at the most.What is the best way to add bass to my factory honda accord radio?to start out you will have to buy a new deck peace in-order to wire a amp for your subs once you do that a single 12" shood do the trick and a 250wtt amp will give you plenty of bass for you specificationsWhat is the best way to add bass to my factory honda accord radio?its better to have a separate amp powering the sub because factory stereos don't have that much power. I would recommend getting a kicker sub with an alpine amp that will give you a nice kick. good luck