If I replace the speakers and HU in my 04, can/should I keep the Monsoon amp? Or is it best at that point to just scrap it all and start over? And if you got rid of it, what's the simplest way to wire up the 5 speakers that I'll have left (3-ways in front/back plus the center on the dash) so that I still retain the basic functionality (fade/balance, etc)? I'm honestly pretty clueless when it comes to car audio.