So I have a stereo that i wanna install, i went to best buy and bought the harness and dash kit and all that jazz...then took apart my console for install and the harness doesnt match up...they told me that there is a stock amplifier that has to be bypassed in order to install the head unit...they wanna charge me $80 to bypass the amplifier...anyone have any DIY help or anything?!?!?!???