That being said I see where your coming from. Saying that I'll still stick to my querry concerning light bulbs. A burned out bulb or a bad ground can cause a flasher to flash rapidly and depending on whose flasher was installed different noises could be heard. My suggestion was not ment to be a definitive answer only one possibility. A long time ago when I was first starting as a mechanic one or the hardest things for me to learn was to check the fuse first. Start look at simple things first before removing all the seats and carpets. Hence, didja look at the bulbs?