Hi all, I installed a new single din stereo and a Amp and a Powered Sub in my C4vette. When the car is running it has a humming sound coming from out of the speakers now. So I purchased two Aramox Audio radio noise filter suppressor. I installed them on the right and left channels after the head unit directly to the amp. It did help a little, but it still has a humm in the speakers. When I installed the amp and power sub and the head unit, I ran ground wires from the frame to
to the Amp and the Power Sub Amp, and head unit. I also installed a ground wire from the battery and grounded it directly to the frame. I have also looked at the wiring schematics and removed the bolts and ground wires, i wired brushed the frame and eyelets so there is a clean ground.. I also installed a Boss Audio System B15N noise filter between the positive side of the battery to the head unit. Still has a humm. what have I missed,
Any help would be appreciated.