Metra SSRLRL Noise Filter

the following video is me troubleshooting a ground loop or alternator line issue that I got when I installed a DSP digital signal processor to my factory head unit I had this connected my under the seats up well first I knew it wasn't coming from there but I try various things to try to get rid of this noise which was basically a wine that would increase with the RPMs of the car so you can go ahead and watch the video to sort of see what I went through in case you're going through it as well baby I tested something that you haven't yet maybe you'll have a different result I also show you where the factory amplifier is underneath of the driver side see how to basically get that out if you want to just get to the end see how I fix the problem in my car you can go ahead and look in the video description below and I'll put the timestamp as to where you can jump to just to see the overall so