Need help with Body Kit Noises

I had the body kit professional painted and installed on my car about 4 years
ago, and now it makes creeking / squeeking noises when I hit a bump, get out of the car. The noises sound like when you are bending a long piece of hard plastic, and it seems to come from the side skirts. It makes that noise basically when even the car runs over any bumps, or when weight is added to it (like when someone sits in the car)....it's making the car sound worst then it is, since my car runs smoothly.

I need some suggestions on getting rid of the sound...cuz it is getting to the point that I want to take off the side skirts and put back the original side skirts.

Info
Car: Integra 95 4 Door
Body Kit: Racing Series 4PC Complete Kit with Type II Vented Air Dams
http://www.car-parts-accessory.com/WingWest.asp (link picture)

 

i think 3 m makes a double sided tape with a foam inbetween the sides put that between you side skirts and your rocker

 

Whoever installed that Wings West kit should have already put that 3M tape there, because all their kits (at least the ones we get from them) come with the double-sided tape. Also, sometimes body shops that usually do insurance claims, don't always know, or have experience with aftermarket (since they are most always restoring vehicles). As far as paint, they are good to go to, but try and have the kit done at a place that does lots of kits.

As far as the noise, it couldn't be your springs, or struts, or any other suspension component? Maybe its just me, but I've never known a kit (fiberglass or urethane) to squeak, or make any noise at all when installed.