Stevetnewman

I have a 2016 Silverado without the stock bose system. I was told the anc is why I'm getting feedback through my subs. I used the lc7i rca converter and ran the input wires from my door speakers. I am running aftermarket highs off an aftermarket amp. Just wanting to know exactly where to find the anc wire to cut to get rid of the noise in my subs. Don't even know if my truck has a factory amp being that it didn't have the stock base system. Please let me know which rear door panel to pull or where I should be looking to cut this wire. Thank yall in advance.