CAN'T UNDERSTAND WHY MY SPEAKER'S GO IN AND OUT WHEN I TURN MY STEREO UP. I HAD A SYSTEM PUT IN IT EVER SINCE THEN IT HAS STARTED DOING THIS, WHAT COULD IT BE????
Speakers Going In And Out on 2001 Ford Explorer
The statement "I HAD A SYSTEM PUT IN IT EVER SINCE THEN IT HAS STARTED DOING THIS" is the key thing here. When the stereo was installed, the problem was introduced. Could be one of the components that was installed, or the installation itself. If yo had this done professionally, then I would take it back to the person who performed the installation.