| Re: amp on a stock sys??? The factory amp is on the driver's side of the trunk, rear, directly in front of the left tail light. If you disconnect it nothing in your audio system will work. not only does the factory amp provide power for all the speakers, but it's also the "brain" of the radio. It controls volume, eq, dsp, fading, balancing, etc. The unit in the dash is basically just a screen with the cd changer. It tells the factory amp what to do. Without the factory amp, the factory cd player is completely useless. |