Yet another method.
It is possible to run wires around that big wire connector behind the rubber bootie. Found this out when I installed the EVS-I, 06 KJ CRD as I placed the LED indicator next to the locking plunger (?) on the door panel instead of where the instructions indicated near the steering column.
Behind the rubber bootie is a plastic piece that snaps into the cab to seal the rubber bootie to the cab. The plastic piece has four tabs, two near the top on the sides and two near the bottom also on the sides, squeeze two together pulling on the bootie at the same time, then the other two you should see wires and hole in the cab or squeeze all four tabs at once. On the bootie are "PUSH" labels and behind the label the tabs.
Or, since I had to fish the wire through I just took the bootie off this leaves the plastice piece attached to the body, the plastic tabs and how the piece detachs from the cab becomes easier to see also there is/are slots/holes in the plastic piece where I ran the wire through, just above the big connector, I think there might be more holes in the bottom area.
Took me a while to put the bootie back on the the plastic piece, wanted to be sure it was sealed correctly and the assembly just snaps back into the body.
Also, FYI inside the cab area, at least on the driver side, the wiring passes through a rubber bung (~2" dia.) inside the cab to provide more sealing I guess. I just removed the tape and fished the wire through that too and taped back up.
So after all of this it is doable just takes time fishing the wire through and there is room to do that, at least on the driver's side.
Bootie removed with blue-white wire for LED.
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Rubber bung on inside where wire needs to come through.
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