There is a loud noise coming from the speakers whenever I hit the brakes in my 2004 Aveo. I thought it might be coming from a loose wire in the factory radio, but after I changed the radio, it still did it, it just got louder. When I come to a complete stop, the noise stops, and even with the radio off, it still makes a noise. Anyone else had this problem?

Have you tried turning off the SCV? (thats speed-controlled volume or auto volume)

How do you turn it off? When I changed the radios, the volume didnt go down when you slowed down in the new radio.

I figured it out. The bracket that holds the wires on the speaker broke and the wires were grounding out on the speaker making the noise. Super glue fixed it. Thanks