So, with 10,000 miles coming up, it's time to start considering a Cabin/Pollen filter replacement. I usually do the first at 10,000 to see how nasty they are and then every 10-20k after that. I can't find any reference in the Owners Manual about where it's located and how to replace it, anyone know? I know that on certain Lexus vehicles, failing to place the A/C in a certain mode results in damage to the A/C system when you change the filter...do we have any such worries?