4 l 6-0 e transmission took it out of a 99 put it in a 05 Trailblazer wire harnesses aren't the same the 99 has two plugs 05 has one plug how do I wire r plug it in to make it work. I took the old neutral safety switch off and all the plugs off the old transmission put them on my transmission to plug them in and transmission won't do nothing so do I need to put the old plugs back on the transmission and have a wiring harness or what