Yesterday I installed the Power Deck lid Latch for my car. I have a 2003 SE so it didn't come with one to start with. I'm just writing this post for others who might want to do it. I'm at work right now so pictures will come later
I went to the junk yard and found a SXT to pull the parts from.
I grabbed the "Trunk Pop" button, and its plug in connector that is located inside the glovebox. to remove these, the easiest way is to remove the screws at the bottom of the glove box. After you do that, the glovebox will come right out, providing easy access to the button. Next there are four retaining tabs that hold the button in its hole, really just lightly pinching these and shimmying the button out will work fine. After the button was out I cut the wires connected to the plug with a good 4-5 inches to spare.
Then I grabbed the Power Deck lid latch and the Deck lid wiring harness. Both are pretty easy to remove.
I started wiring. Now I wired my latch to the Ignition power. This means that My Latch will only activate if the key is in the ignition and in the "ON" or "Accessory" position (you can still open the trunk with your key if the car is off, don't worry). So to do this, I spliced in one side of the switch to the Cigarette lighter power (Red wire). Then I ran some 18 Ga. wire behind the glovebox, Down inside the door trim, under the weather stripping along the bottom side of the door, under the kick panel at the bottom center of each door, behind the center pillar with the passenger seat belt, under back door weather stripping, under kick panel, under the weather stripping up the side of the door just until the edge of the back seat covers it, then out of the weather stripping, stuffed behind the seat, stuffed behind up along the to of the back seats over the the drivers side, into the trunk, behind the side carpeting, joined with the newly installed wiring harness, up the drivers side arm holding the Deck lid, routed through the deck lid untill it reached the newly installed Power Latch.
I spliced the glovebox side of this wire with the other wire left on the switch (the one that isn't connected to the Cigarette lighter). Then, on the trunk side, I cut the connector that goes into the Deck lid Latch solenoid with about 4-5 inches of wire to spare. I spliced the wire that i just ran to the green tan wire on the connector, and I spliced a wire to go from the black wire on the connector, to the ground on the latch.
Finally, I turned the car on, pressed the button, and Viola! I'll have pictures of all this to follow very shortly.
I am not going to be held Liable for any stupid screw up, mistake, or damage that you might do. So don't try to sue me. You asked for advice from the internet instead of taking it to the mechanic, so its your own damn fault.