So I installed my 4 channel amp but unfortunately in the process I fried my Headunit, Pioneer deh p6600, by accidently running my speaker wire from the amp to the headunit for the front speakers instead of the harness and turned up the voltage which fried the unit. Oops my first install, I wanted a new headunit anyway so I went and got the Pioneer 5900IB, pretty slick ass unit. Thanks again.