Before you put in the headliner...consider cleaning the 'roof' and applying a product called "Peal & Seal" It is a sound deadener and offers alot of insulation. Cheap for the benifits too. Check it out here! I found mine at a roofing supply place. Just don't settle for a substitute....most others stink bad. Peal & Seal is just as good as the high-bux stuff they sell to the guys that put it in their cars with wah-zoo sound systems. wink