I want my car to be more quiet. I plan on installing my rear seat soon, so hopefully that will help. A friend told me that I need to stuff something in the openings of the roof channels to reduce the IDA noise. Stock rubber mounts would probably help, but I have polyurethane right now.
Currently I have the stock jute padding on the rear parcel tray/wheel wells, "angel hair" under the headliner, and 1/4"(6mm
rubber mat between the pan and carpet.
What have you used to quiet the cockpit of your hi-po beetle?