hey, i have a '04 gt with 6cd changer. just got it. does anybody know how to install an aftermarket amp and subs using the stock stereo??? i saw some forums saying there might be wires already brought to the trunk. and with slight modification can be attatched to the amp??? is this correct? help thanks

 

yes. it's been done a lot.
I have an amp and a sub in my trunk.
do a search in the AV forums and you'll find tons of people who have done this.