Hello Bootsie, can you help me out a little more on your wants and budget please? Knowing the parameters in which you want to operate will allow me to suggest exactly what you will need. I agree about using what had been previously run as why pay twice for one service. Now from my understanding so far you have an 8gauge amp kit currently installed. How were you regulating the bass that emanated rom your subwoofer? Where was his placed and how much room are you willing to lose? These are just some basic questions that will help me and you in the long run.