Premiere Pro Wont Even Attempt To Sync After Clicking Sync Button

Hey, so I am doing a carpool karaoke video, I have several camera angles/camera audio. I have had no trouble getting all of them to sync and have edited all the camera angle changes and camera audio effects. I need to add the songs (which are the exact audio files played in the video) yet when I put the song file (I've tried both .aiff and .m4a) in, highlight the song and camera audio, and then right click and click synchronize, It does its little thing where it says processing audio but when its done, nothing happens, nothing has moved and the music is still out of sync with the video. If it can't find the matching audio it would have told me because its happened to me before when trying to sync the wrong clip but this is not the case, premiere should have no issue finding the matching audio. Anyone know why this would be happening/what I can do to fix it???