So I have an aftermarket Boss head unit. All stock bose speaker package with the bose. I am installing 2 10inch subs. I dont know if subs are the way I want to go so im just maching stuff up. What do I need to do to just run an amp for the subs and nothing else? I know there is a stock amp that in the truck used when the bose package is in your truck. Im very new to the stereo stuff forgive the dumb questions.