Originally Posted by
Digger
You need to drop the headliner, you don't need to completely remove, but you do need to drop one side and the front down far enough to get working room or you will ruin the headliner.
Plastic gets brittle with heat and age. Removing the trim without breaking the clips is the time consuming part and depending on where the car has spent the past 13 years this could also be the toughest part of the job. Flat blade screwdrivers and small pry bars will work but they also poke holes and scratch paint. If you are anywhere near a Harbor Freight store, get the plastic and metal trim removal kits, you won't need most of what you get, but cost less than buying the individual tools and is $10 well spent.
Your car is new enough for side curtain airbags and though these are not a problem, your first time dropping a headliner you best pull the battery before you pull the trim, just in case.
Take your time, even the pros break clips and if you only break one, you're as good as the pros. The jellied super glue works best for putting the plastic back together, not as good as not breaking, but good enough to hold trim in place until the next time its pulled.