inputs.text: beyond expectations - recently amp installed 2013 tacoma love nonjbl touch screen head unit not like quality music produced factory speakers replaced four speakers infinity speakers sound not much better expected head unit not enough push lack bass coming rear speakers beyond disappointing went looking amp would not make ears bleed would make infinitys sound like meant amp exactly deep strong bass four speakers plus highs mids crisp pleasantly surprised loud could push thehem stopped plus one best parts amp fit perfectly behind double din head unit no speaker wires run seats cheap easy upgrade makes world difference