There's a big honkin' hole left over when you remove the old one, and it needs to be held in with two small bolts. It's in the fuse box located on the passenger side of the engine compartment. The 80A fuse, I believe, is the hole closest to the front of the car (The radiator/battery). There should be a diagram on top of the fuse box cover that will show you where. I can get a photo of mine and send it to you if yours has gone missing. Post your email address if you need a picture.