Sorry to revive a dead thread but I was wondering if someone could help me. I have an ms-8 paired to my hifi headunit. For some reason at low volume or even with the headunit off I get a weird static sound on the speakers. It goes down when I lower the gain but then the audio quality goes down as well.
I have tried various ground connections and I have run the positive to the battery directly.
I used to have a dynavin hooked up via rca and it worked perfectly. I wanted to go back to stock and now I'm stuck with this horrible sounding system.
And yes I am using the technic harness!
There was one guy on an E46 forum that was talking about grounding the amp to the headunit. Or regrounding both amp and hu to the same spot on the chassis. Would you guys think that makes sense? This is for an E90 not E46
Thanks in advance!