Cabin Air Filter

Would you please tell me the location and how to install a cabin air filter on a 06 GLS V6 2.7L ?

Thanks

Its behind the glove box. Open the glove box and remove the little string on the right hand side by pulling it in towards you and sliding it back out. Then push both sides of the glove box in and pull it down. After that you'll see a tray with 2 clips straight in. Squeeze the clips and pull the tray forward, the cabin air filter sits inside that tray.