I have a 2001 F350 XL Crew Cab with a 7.3L PS I bought a couple of months ago. I decided I wanted to put power windows, power door locks, power seats, etc into it. I found a guy parting out a 2003 F250 Lariat with the 6.0L PS he was parting out and I bought pretty much the entire interior from it including dash, interior wiring harnesses, interior fuse panel, GEM module, etc. Later I found a smoking deal on a set of King Ranch power seats. I figured it would be an easy swap electrically. I've completely gutted my truck, lined it with KilMat, and am in the process of putting it back together. I started to swap in the new harnesses and found they are similar but there are some large differences namely the connection to the interior fuse panel (2 large plugs vs several smaller plugs), and then how it feeds into the engine bay (3 large plugs vs about 5 smaller ones. I stretched both harnesses out and layed them side by side and it looks like I can disconnect (via a plug) everything needed for the seats, windows, and door locks from the 2003 harness and then just use my old fuse panel and the old section of the wiring harness that feeds through into the engine bay. I started making that swap and there are a couple of extra plugs I can't seem to figure out what they are for. I then started looking at wire colors on the "same plugs" and are noticing a lot of color differences. I've been looking online trying to find something that might explain the plug differences and/or wiring schematics for the interior stuff but can't seem to find anything detailed enough. Any chance someone has done something like this and/or might know where I can find detailed schematics for the interior wiring?