audio issues - loud volume / hissing / static issues

[Count_Zilch]

Following. I have all of these issues with JY-MO005N3N on my 2009 Mazda 6 GH with Bose stereo. I think the gain being pushed to the amp is amplifying the noise floor like you said. There is an option in the factory settings to balance the different inputs, but I dropped all of these to zero and it is still too loud. Need a way to turn it down, or at least clean up the hiss/wireless interference.