Heavy props sound kit help!!!

Hello! New member and first time poster! I purchased a heavy props sound light kit. I wired up the sound according to several threads and instructions using the 7w canakit amp, i am getting a tremendous amout of feedback/distortion. Very new to this, any help or advice would be much appreciated. I have the seperate power source for the sound kit and amp. Using an 8ohm speaker. Very frustrating!!!

Would you happen to have a wiring diagram for the full kit? It’s not making sense with where the switches hook up with what I’ve found on here. Maybe some pictures of your kit? Any help would be much appreciated!!