listen bud, i have a 99 gt. honestly u cant run BETTER then stock speakers off the Mach amps in the back...and yet u want to run a sub off of it LOL GL with that. i got rid of my amps....(Currently in my garage).. got a nice head unit and nice infinity speakers. added a amp and a sub. my systems bumps
..if you try to run Better then stock speakers off the amps in the back your audio system when the bass hits or when u crank it too loud the music system will turn off for a few secs and then turn back on, basically because the amps cant handle the power the speakers are trying to obtain. basically if u want a good system get rid of the 460
... i have my 4 Infinity speakers and stock tweeters run to my Head unit and my sub is ran to an amp in the back. my amp is connect to my pre-out on the back of my radio.