you have 2 choices use the av jack or right in that area on the nes board i'm pretty sure theres a little bit of sheilding you have to take of there theres a large solder blot, that is a ground and directly to the left of that there is 2 small solder blots that are the sound and video id you play with it you'll be find when i first mixed up the audio with the video when i soldered it to the board and fixed it after it still worked fine you just have to play with it a bit