Joe, I'm not used to the layout and the wiring/signal names of the 400. I've only done 1 400 WOPL (well, now 2) and why didn't or couldn't you, kinda match the 700 set up so the signal names were the same??? I can wire a 700 WOPL in no time (after doing a bazillion of them). Maybe it would come to me better if I took a break. The Fused in, Fused out, Unfused in, and unfused out first made me scratch my arse for a moment and my wiring isn't as clean as a 700 WOPL job. I guess with a bit more practice and patience I would get it sooner or later. I reworked many amps because my wiring wasn't up to snuff and once had a meltdown but have done the last 50 amps ALL the same. See, I'm trying to talk myself into pulling some of the wires I routed that I don't like because they cross over other wires instead of laying in line like a box of skettie.....