I have an issue that sounds very close to the same this guys having so i tried determining if i had a ground issue. Im not very savvy with a multimeter but from what I gathered on the web i set it to the 400 ohm setting(pic), i measured from the neg of battery to the place in the back of my vehicle where my amp is grounded and got a reading of 6.5-7.0(with the everything off) This seems like a bad ground to me i read online that it should read below 4. Then i measured the neg of battery to where the battery is grounded and got the same 6.5-7.0. Is my ground solid or as good as it can get? Any info or assistance would be greatly appreciated my systems been down all winter because of this issue. Thanks in advance

 

how many rca's are going into your amp?

 

fixed.... grounded rcas to hu

 

nice.....