I just overhauled the interior.
This project included gutting the interior, adding sound deadening and heat insulation, new black carpet, new door panels, new speakers and amp, rewired the stereo, new gauge faces and HVAC controls and switched interior illumination.
Here is the progress of the doors.
Pic 1: Removed plastic vapor barrier and black goo.
Pic 2: Added Second Skin Audio Damplifier sound deadening.
Pic 1: Sealed up door cavities with alluminum sheeting.
Pic 2: Completed door with JDM new door panel with alluminum speaker grill, KG Works door latches and Shift for Brains custom alluminum door pulls.
Here is the progress of the rest of the interior
Pic 1: Interior gutted.
Pic 2: Damplifier installed from firewall to rear deck.
Pic 3: Reflectix heat insullation installed.
Pic 1: Second Skin Audio Overkill closed-cell foam installed for more noise reduction.
Pic 2: OEM Carpet installed.
Pic 3. The final results.
View from the driver's seat.
The car is definitely quietier and feels more solid while I only added about 30lbs in total to the car.