Where is the cabin air filter located?

Her you go: http://bit.ly/grandprixcabinfilter

Super non-technical answer, but this is how I know to describe it. Pop the hood. Top left hand side there's a plastic piece just under the windshield. Windshield washer fluid hose runs across it. Just pull it upwards a little after moving aside the rubber lining , no need to remove the bolts holding it on. It should pull upwards enough to reach right in and yank the junk filter out. Then just don't forget to put a new one in. Throw that rubber lining sucker back on. Shut the hood. Breath fresh air.