whats this
 

what is the button on the center console that looks like it controls volume it is in the middle under the power windows just curious thanks

Its the fader switch, controls what set of speakers will produce sound. Push it foward it will only run the front speakers, push it back and it runs the rear. Leave it in the middle it runs front and rear.

If you have an aftermarket deck most likley its been bipassed if you have the original deck it should work.

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