Ricardo2

Hi everyone. I'm new here and this is my first tl. So I bought this tl and it had a constant buzzing thru the speakers. I have since replaced all the speakers and replaced the factory amp. Still have this buzzing with the radio on or off. I did try swapping the head unit with no luck. Here is the kicker when I was swapping the head unit I turned the car on with no radio plugged in at all and still barely had a buzzing noise coming thru the speakers. I mean just barely but I could hear it. Only have buzzing when the car is running. With just the key on there is no buzzing noise. Any and all help would be great. Thanks ahead of time.

Jackass

Alternator and/or bad ground somewhere in the audio path.