What are you trying to do, your post isn't very understandable, do you want to override the AM tuner portion of the radio and use it as an AUX input instead? You won't get stereo audio, am is almost always mono. Take some better close up pictures of the AM receiver section. It looks like it's the board sticking up on the left center of the third picture. Use a thin sheet of paper like waxed paper or tissue paper, maybe even a paper towel or napkin over the flash of your camera to avoid that harsh glare. Electronic components don't photograph well with a naked flash they need the difuser.