i would like to uninstall the stock amp and 6x9s for the 2003 altima, and i was wondering how hard it is to uninstall them as someone told me that it is pretty hard. i jus got my system dropped and would like to take out the factory sytem, i already have the interior speakers taken out from both the front and back doors as well as the factory head unit. for those that have done it. please lemme know how to take out the 6x9s and the amp??? thanks, really appreciate it!!!