I just got two of these for my avalanch. They are very load and easy to hook up and mount. I had to come back and edit my review because one has blown out and the other one sounds funny w/o both working. I just ordered new horns and try to mount in a different spot. I was unaware you can Not mount these in oem position,evedently they are not water proof, soo, i will be replacing with different horns.