Like a lot of others I had a terrible rattle in my driver and passenger doors when playing music with any sort of bass. Even when the bass was set to factory. I took the door panel off and started searching for rattles.
The main rattle was from the box that says “DCU front only”. While I had the door off I lined the interior of it that touches the door frame with some sticky foam. Can get it at any hardware store. I also put some of that foam in other places I read about rattles coming from like the triangle shaped plastic piece on the A pillar
Sorry for the song choice haha but had to find a song that replicated the frequency of the rattle. Turn the sound up on the video to hear the rattle of yours is similar.
Attaching a video of it and photos.