Hey xxboarderxx,
The install was fairly easy for me. The hardest part was removing the interior door panel but I used this website as a cheat sheet. (
Ford Explorer Interior Door Panel Removal Guide - 2011 To 2015 Model Years - Picture Illustrated Automotive Maintenance DIY Instructions) Removing the actual Securicode panel or "applique" as it is known, is really easy. Just start at the top, take a plastic non-marring tool and work your way down. There are 2 strips of 3M tape holding it on and a couple clips. Work the tool down each side of the 3M tape and it removes easy. Use the tool or just pull at the clip points to remove them. When removing mine at the middle clip point, the panel snapped in 2 pieces. So you may want to wear gloves when pulling as the plastic was sharp where it snapped off. If it does snap, it is actually easier to work with.
Once removed, roll your thumb down on the excess 3M tape that's left over. It comes off easily, basically just rub it off. Now, the securicode panel is connected to the computer by a wire that connects in the middle of the door. There is a plastic covering on the interior door panel, peel back the plastic and giggle to the wire from the securicode panel and you'll feel the connecter up in the door. I was able to remove the old and reattach the new with one hand up in the panel. Basically unclip the old panel (unhook the battery before this to be safe) and pull the wire up. Run the new wire down and then align the panel, remove the tape covering and snap the clips into place. Press up and down the panel to ensure the new 3M grips. Then reach up in the door panel and attach the new one. At this point, reattach your vehicle battery and your factory code will work. Replace the plastic covering for the door and reattach the interior door panel.
That's pretty much it and you'll save about $300 of labour for the install fee. Mine still works perfect to this day. I bought the part on EBay.ca from seller big-3-oem-auto-parts. He has the part for sale for $175.50 USD today. The listing title is "2011-2016 Ford Explorer Front LH Driver Door Keypad Trim new OEM DB5Z-7820555-AC".
I actually have some photos and video of the process...but I have no idea how to upload those to this site. Hopefully this is helpful to you. Good Luck!