I bought a truck with the same swap that was pretty well executed, but they never bothered wiring up the NSS or the reverse light switch, so I have neither. I started looking into using the switch on the 4l60e last summer, but never followed through. Then I realized the B&M shifter in the truck has both switches built in as well, so thought that might be a simpler solution, but I'm new to this and didn't get far in tracing where I should splice the shifter switches in....any suggestions? (As in physically where are the original Toyota wires supposed to be, I started tracing at one point and couldn't find them.)