Well these trucks are infamous for letting water get down inside the door and destroying the speaker cones. So it's not a situation of if but when. All four mine are shot so there is my dilemma. They sell little polyethylene or polypropylene covers that go over the top so that the water runs down over them instead of on them. They're only seven bucks a pair but I figure it's worth it since I'm going to keep this truck a good long time.Same here, no clue these days. I haven't had to replace one in a very long time. However I do have a GMC that's had one on the fritz for a while. I just adjust the stereo control so that it doesn't rattle....