False alarm apparently. Everything I do seems to help a little bit but not cure the issue. I also added a hood ground strap and reconfigured my engine ground, and grounded chassis as well. I have tried with and without antenna. I had my head unit wiring harness bundled up with the heat system wiring harness which it did not seem to like. I reconfigured those away from eachother and I thought I had it. And then i put my head unit back in place and i am still getting some crackling. I have a supposedly better quality noise filter on the way and will try that when it gets here.