Hey, The roof liner is a know problem with the Camry's (I had one). If you have time and some skills, you can take it out the roof liner via he front passenger door. There is some slight bending required, so take it slowly (two person operation really) Remove all the all liner and the foaming glue stuff gently with a plastic paint scrapper and paint brush. Once you have removed all that, light vacuum the panel to remove any remaining particles. Then a trip to spotlight to get some new fabric ( I went for black suede ;) ) some craft gule and a craft roller. Remember, always get an extra half metre, so you can tuck it away ;) Now the fun part, start from one end and add a thin line of glue and roll the fabric over it. Don't go tooo thick on the glue otherwise you will see the lines thru the fabric. Repeat until your finished the lot. Re-install and your done Hope this helps