You Know This - Mysterious Ticking Noise

There is a mysterious ticking noise in my car. It's been happening since about day 2 of owning the car, but they just can't seem to figure out the source. When I brought it in the first time, the man asked me, "Did you leave your turn signal on?" Yes, because I am that dumb. It's now been 3 years since I bought the car and they still can't figure it out. I've taught myself to ignore it, but this video made me think of it again...

At this point I wish it was a pipe bomb just to end the mystery.