Been looking through all of the threads for audio and can't find anything that relates to my situation. I wanna keep my head unit but install my own amplifier and subwoofers. I used LOC to tap into the rear deck speakers. Amplifier turns on just fine, wires are hooked up correctly. Only issue is that when I turn the car on the subwoofers make a low humming noise. Even with radio volume muted. I can play music and hear the bass but then it starts randomly blasting. I used different RCA cables to make sure they were fine and it still happens. Do I need to bypass or remove the factory amp? Does the amp only affect the speakers or the radio as well?
2015 200 limited audio install
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A speaker hum points to a possible ground issue, either a missing ground or ground loop. This link discusses ground loops
www.audioholics.com
Ground Loops - Eliminating System Hum and Buzz
Got an annoying hum or buzz in your audio system? You likely have a ground loop. This article helps you diagnose the problem so it can be eliminated. Don't put up with hum. Read this article!
www.audioholics.com
If you can’t get it to work, maybe just try installing an aftermarket head unit. I have one connected to my aftermarket amp and dual 10” subs connected to them and it sounds great. And a major plus with the aftermarket head unit is they allow you to modify the sounds more to get the most out of your subs.
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