I was lucky enough to find a sale on ebay. I bought these 2 window module units (Autoloc WC1000) for $36 (Shipped).
They normally run for $40 a piece. I'm using one for the F150 and one for my Expedition.

It comes with instructions. Pretty straight forward.
I opened the switch panel on the passenger side and cut the two wires from the switch harness that goes to the motor. Those two wires are RD-YE and YE-RD.
I didn't have to remove the door panel at all. Everything was done in under 30 minutes.

Made my connections as per the instructions:

-White to YE-RD (Side of the wire closer to the switch)

-Blue to YE-RD (Side of the wire closer to the Motor)

-Brown to RD-YE (Side of the wire closer to the switch)

-Green to RD-YE (Side of the wire closer to the Motor)

-The Red wire is the 12V input. They recommend to find a different source other than the window switch 12V. I ignore that and did it anyway.
So i spliced my red into the YE-LG wire in the switch. Do this at your own risk

Note: Since I'm splicing into the window's circuit 12V source, I swapped out the 15A fuse that came with the unit for 10A just to be safe.

-Black (Ground): I simply used a terminal ring and a self tapping (drilling) 1/2" screw and drilled into the door.

-The last two wires (Grey and WH/BL) can be used to hook up to your Alarm or Keyless entry Unit to be controlled from
the remote. But I opted not to use them at all.

There's a Red Looped wire hanging from the module that I had to cut for it to work. It may work for you without cutting it
but it didn't for me, so I cut it and everything worked wonderfully



Window Module WC1000


I can take pictures of the install if anybody needs me to.



I took this diagram and modified it a bit to show the connections I made for this install.



Power Window Module - One touch up/down