It's on the right side. I tried the magnet thing, but I can't even tell where the dumb thing went. I just came back from getting gas and the stupid thing kept taunting me. Everytime I went around a corner, I could hear it.
Another problem with using the magnet is the fact that the largest percentage of the speaker piece is plastic. The mounting bracket is all plastic. It will still probably work, but I'm fishing in the dark.