same problem with a 4th gen celica, and my new corolla. easyest way, instead of working out where the squeak comes from just take the whole intrior out, clean every peice individually, and screw it all back together... this gets rid of every noise, makes the car look better, as well as giving you a better knoledge of the insides of the car. complentary tasks are wireing all your stero stuuf propperly, high pressure spraying your seats as well as carpet, cleaning the floor pan, checking the floor pan for rust, adding a special layer of sound proffing, lighten the car by removing body deadner, respray the seat sliders, and hook up fancy lights. i have an account with the people who make the bars for the police cars, so .....you can wire one of those up, i told them not to tell me. Love