I would use Pat's instructions the first time so you can really see what you're doing. It will probably take a couple hours the first time but it will be well worth the effort. If you still have your EPA caps on over the air screws drill into the caps no more than an 1/8 inch with a tiny drill bit. Stick a nail set in the whole an wiggle back and forth. It will start to loosen and then pop off. If you have a later model 2004 or 2005 you will have to get the D tool from Brent. Some guys have made their own D tool from a piece of tubing that they flattened on one side.
Good Luck
