I have an annoying rattle in the dash behind the head unit that I need to find before I throw a match in the gas tank, lol. The dealer is worthless and claimed they could not reproduce the rattle. It literally does it when it is idling. I took the panel off where the top tray is but didn't see anything obviously loose that would rattle. I know folks have replaced their head unit and put in amps, etc so any expertise is appreciated!