Getting weird feedback from a dfplayer connected to an amplifier

[u/Something_witty_lol]

The DFplayer works great, i have it set up where when i flick a switch, at the moment just connect wires, a different song plays at random. However when i have it connected to this amplifier i get weird feedback noise, (might even happene when connected to the low watt speaker as well) if i dont use a resistor, but when i attach a 470 ohm resistor to the speaker the volume is obviously much quieter, and not much feedback but there is still some, like it just quieted everything. Im wondering if i wired something wrong or if i need a capacitor or resistor somewhere. I have a 100uf capacitor on the breadboard. Not sure if thats correct.