I do hate the cracking and buzzing noise that my speakers constantly make when my iPhone is nearby. I noticed I never had that problem with Verizon (non-GSM, if I’m correct). But my years of AT&T kind of made me just think it was the way it has to be. Now, I’m going to try adding these beads and see if that quiets the noise my speakers make when my cell phone is next to them.
Do your speakers buzz and crackle whenever a new text message or call is about to come in on your nearby cell phone? … Tape the ferrite bead to the cable of the offending speaker, and the magnet should provide enough passive frequency suppression to do away with the horrible buzzing and popping.