Next were the doors, so we needed to pop off the door panels. Normally, you could apply insulation to the inside metal surface of the door. However, the design of the JK’s doors makes this pretty difficult without taking the whole assembly apart, so we used self-adhesive Dynaliner on the inside of the door panels. It’s lightweight and should help tame some road noise. To dampen vibration through the doors, we also used some small pieces of Dynamat Xtreme on the metal where it would be covered by the door panels.