Speaker crackles and pops
So this has nothing to do with the 3.5mm cable but the speaker itselft. My left speaker crackles and pops when i move around. Very annoying to listen to music and walk since music on left side stop and crackles. I went to a repair shop and they said if they try any harder they could break the whole thing! Don't know what to do now. Any suggestions? Would local apple shops be able to fix this? Or do i have to send it off for it to be repaired?