ok so I have all my new speakers installed (pioneer 6x8's 240 watts) what kind of amp should I hook up? I have plans of putting a 10" sub in the back but that will be later down the road. So right now the speakers sound fine, but not enough bass coming out of them, my deck is a panasonic 50x4 so I know it should be pushing the speakers a little. I just want something for the 6x8's right now but I will upgrade later. Any suggestions?