How do I reset the amp that's factory through my radio ? I have sound but it's soft no matter how loud you turn it up no there not blown thanks pam

The small button on the top left of the radio has different settings there is an auto volume setting you could turn on or off. To make it play a little louder. Tomorrow I will make sure on any other settings.

Will try this today but already went through all the settings an nothing new radio ...same thing looked under carpet in back for wire corrosion but clean.....

My side speaker and back speaker want work because of the factory amp has no power

I have pushed the reset for radio and still have no sound.