What is the location? and how do I get to them?

What engine do you have?

I assume you have the 3.5 if your asking. They are under the coil module covers (about where the valve covers are on a reg. engine). Remove the 6 or 7 bolts, disconnect elec. connector and remove the bank of coils. There are rubber boots connecting the plugs to the coils, remove these and use a reg. plug socket and extension to remove the plugs. Remember to use silicone grease on the boots and anti-sieze on the plug threads as this is an alum. engine.