I just swapped my 93 mustang lx convertible, overdrive tranny for a 89 LX, rebuilt overdrive tranny. Both are 4cyl. I was told the 3 wire connection to 2 wire connection would be fine by splicing in 2 wire connector. Now my source says he isn't sure. Too late it's installed (yesterday). Does anyone know the proper splice or fix? issues? Start over?
3 wire is red brown orange. 2 wire is orange red.
I was also told today differance is 3 wire electronic lock in and overdrive. What will I have with 2 wire splice?

Thanks