While searching for countless months on a good write up or diagram on s14 sr wiring into s14 chassis, I came across this guys blog, and he did something that i would like to have done if i could have figured it out lol, he made a simple adapter/converter that connects the f4 plug from the sr harness to the m63 plug on the 240, without actually modifying the sr's harness. heres a link. i think this would sell more than converted harnesses , its soooo simple lol.
just scroll about halfway down
http://andresnissans14.blogspot.com/200 ... chive.html
