Update
So I said I owed pics. Here's an intensive post. Last few weekends have been rainy and not a lot of progress.
But started with the passenger side rear seatbelt. Cut away enough material to slide the new assembly in. As it came with bolts, but no nuts, I couldn't find matching nuts at the local hardware store, so I bought new nuts, washers, and bolts and bolted it right in. You can see I had to re-orient the fuel filler release cable and my rear speaker wiring.
Here are pics with the trim pieces (found at cruiserparts.net) installed. (Note, trim pieces are discontinued).
Here's the driver's side. Notice the wiring loom that necessitated a large area cut out to get it over and behind the seatbelt assembly. Not only did it need a large opening, I had to cut open the metal behind the front piece to run the loom (see evidence of my poor dremmel skills in the 2nd pic.)
Then I wired up the rack lights (front/rear) for the 3rd time. Using heat shrink tubing along the whole run. I ran the wires in the 3/8" diameter, then joined the 2 and ran that into the rear hatch with the 3/4". I ordered the following from buyheatshrink.com:
3/4 inch 3:1 Dual Wall (adhesive lined) heat shrink, Black : 4'
3/8 inch 3:1 Dual Wall (adhesive lined) heat shrink, Black : 16'
The Rigid bar comes with a water tight cable ending in a connector so I left that as is.
Then I gut the other connector off and connected 12 gauge wire to run the remainder of the distance (to the battery/ground).
That ran (inside the heat shrink) to the back to meet the backup light.
For the rear IPF light, I connected some loom (one of the prior wiring attempts and I didn't want to re-do it) from the light to its connector.
Then connected the other connector to 16 gauge wire for the remainder (battery/ground) and covered it with 3/8" heat shrink.
The 2x16 gauge backup wires, and the 2x12ga Rigid wires (each in their own heat shrink) were combined in the larger 3/4" heat shrink near the driver's rear rack mount and then run into the rear hatch:
I ran that down the side of the hatch weatherstripping, made a loop (so any water would drip off the low point instead of following the wire inside the truck) and ran it in behind the trim piece where I had cut a hole (and included a grommet).
Once inside the truck, I included a set of quick disconnects so I can unhook the wires (and roof rack) if I ever need to. The wires then trace their way up the driver's side to the battery.
[due to restrictions in the number of pics/post, the rest can be found in the next post]
Robert