Have a whining noise in speakers. Have 4 gauge runing to splitter two 8 gauge coming off going to 4 channel eclipse amp hooked up to a 6.5 skar audio components and polk 6x9s in deck other is two10 dual 2ohm alpine type s on a menace 1200.2 (for 20$ cant beat lol) have a 2010 acura rl factory bose w navigation when amp is on because i have hooked up on a switch it has a whining noise now people have said turn anc off which i have but problem still persists any ideas?? Anc is microphones for noise cancellation system

 

Could it be the line output converter picking up interference??my only idea at this point.please help thanks

 

I have used an inline noise reducer from like autozone or advance. It installs on your constant.