I have 2011 Tahoe LT and when I bought it the owner said the turn signal sound does not exist on these trucks. Anyway, I am trying to now fix it because it's annoying not having the clicking sound. I can only hear the clicking sound in the engine bay with the hood open but inside you don't hear anything. It has an aftermarket radio(Pioneer) installed which I had to fix because it was incorrect. The park assist does not work either I have to have it re-programmed. What can you suggest for getting this turn signal sound to work???