There was no crackle to the sound they heard. Was pretty good at first but today (after 3 months) I notice that the part that acts like the hinge has been slowly tearing and now is apart. Great quality for the money. While this product maybe universal, it should mention what vehicles it will actually fit. If you dont mind the color difference, Id fully recommend this wine rack. There are only two improvements I would make: 1) The space between each level is not quite enough for some spice bottles. These do hurt near the ear bone area but not as much as the inear earbuds does. They actually sound pretty good. Not sure if the lenses are actually polarized, but they are perfect for those bright winter days so far! Second, I actually dont find the strap between my toes annoying.