Strange little nusance help

I hit a bump in my 2004 Grand Am the other day. Ever since in has made a blinker sound randomly. It doesn't do it at certain speeds because it also does it when the car is in park. The blinkers themselves work fine its just that this random noise is annoying and it seems like something that a mechanic would charge too much for. I think a connection is just loose but I don't know what to look for or where to look. Help me please.

thanks