I just got rockford fosgate punch speakers. they arent the ones u see on the site. They r prob a year old cuz i got em on clearance but the 6.5 kick out 50 wats rms and the rear ones kick out 75 rms. I was wondering wat the factory amp can handle for the speakers. In other words howmuch of that power will i be using cuz i dont wanna get amps.