Hello: An old man newbie wants to rock out his 99 lumina sedan. Has pioneer 50wattx4 deh-1600, pioneer 6x9 3 way 140 watt rear and kenwood 5.25 150 watt 3 way doors. Prefer not to loosen up my glass with big sub action, just want clean, clear audio at a high volume. Which amp or setup is preferred? would like to add amp to drive some 6.5" up front but where do I mount the speakers? thanks,