I've had the same stereo set up for several years with no problems. Kenwood head unit, Sound Ordnance amp, and Kicker speakers. Today, I started hearing a whining noise that gets louder as the engine RPM rise. I'm assuming it's some interference from the alternator. I have two questions.
1. What would cause the noise to start after several years of no noise?
2. What noise suppressors would you recommend?
1. What would cause the noise to start after several years of no noise?
2. What noise suppressors would you recommend?