The doors are finally done and reassembled!
The door panels require a lot of attention to detail in order to be acoustically dead. I spent about 2 hours per door panel.
Before vs After
I used Resonix CLD, Butyl Rope, thin CCF, and Fibermat 45. Start by cleaning the panel off then removing necessary items to identify gaps and parts/pieces that require Butyl Rope. Stuff the Butyl Rope by first removing sections then warming/stretching to make it pliable then stuff it into the gaps. This is tedious, but is an important step to prevent rattles/buzzing from those annoying plastic parts. This works well around loose connectors as well.
Then apply CLD by using the largest pieces you can manage. Lots of small pieces aren’t effective, so just stick to the large areas. Be creative and use paper to build templates, these areas are weird.
Next, cut the CCF into thin strips and apply to the parts and pieces you removed to keep them from buzzing. Then you can also do any mating surfaces with the door metal itself. Lastly, foam the door clip locations as they can buzz/rattle in the door.