i think i figured it out. when i installed them it was nice warm weather now it has gotten colder, and rainy. ive had my windows up. when i roll them down and bump it is back to normal
here is a video i took a few minutes ago. it sounds like they are distorting but i think it is just the camera because i cant hear any distortion when im in the truck
edit: sorry for the vid being so shaky i don't know what the hell was going on there.