Crackling noises after loudspeaker replacement.

Hello again. I swapped out my loudspeaker, and all I’m getting is crackling / electrical noises. I checked the spring contacts touching the loudspeaker and they are not the problem.

I’m assuming that either

a) The replacement speaker is defective or

b) Something else is causing the audio issue.

Any idea what other components (aside from the motherboard) I can try swapping out to fix the audio issue? The daughterboard doesn’t seem to have any sound-related ICs on it. Thanks