okay this's gonna by a tricky thing to solve. I FINALLY got the picture on my rgb modded nes to be perfect. When I hook up the positive terminal for audio I get sound and the picture is great but naturally there's a slight buzzing sound since the audio isn't grounded. Now for some strange reason if I ground the audio from the audio out rca jack on the system the picture clarity goes down a little. I was just wondering if there's a point on the nes pcb where I can attach my audio ground with as little interference as possible.