Well I had a draw on my battery I finally chased it down to the passenger side rear amp. My system is 100% stock. The right amp was drawing .18 miliamps and was killing the battery. So I unhooked the amp and the draw is gone. So here is my ? When I disconnected the right amp there was no change in sound I still have bass. When I disconnect the left amp I lose all base. I am not sure how this system is connected but am I only driving the rear speakers and sub with one amp. I was also told that it may have not been the amp it may have been the speaker. I was told that if the speaker blows it can cause the amp to go bad. How can I test if it is the Speaker or just the amp? Thanks for the help.