Clicking noise from blinker

What is your question?

The blinker switch randomly makes the clicking noise (like when you have signaled to turn) while driving. It sometimes happens often, and sometimes I might go a few days without hearing it. The blinker was randomly not working so my repair shop replaced the blinker switch. Now, the blinker is working fine, but we still hear the random clicking, so it doesn't appear to be the actual blinker switch. Any idea what to do?