OK im a complete newb can you tell me in steps please how to install rear speakers to remove rattling. Its a Minivan 1997 Dodge Caravan. The rear mounting places for speakers are made out of plastic and soft metal which is movable by itself.

as posted before your going to need brownbread or dynamat. once youve removed the back speakers you going to have to clean the area get all the grease off and u could use rubbing alchohol for that once youve cleaned the area you goin to have to cut the sheet (dynamat or brown bread) to size unless its already the right size. stick the sheet on and get your heat gun and heat it up and push it into all the crevices the dynamat roller works perfect for this (like 5-10 bucks at best buy) once its cooled down youll feel it hardened and its pretty suck i usually use the insulating tape the aluminum one for heating and airconditiong pipes if i have to use more then one sheet (too connect the at the edges. cut out the center and screw in your speakers