trans swap harness issue

[SR20DET180SX]

Ok here it is.... have a 90 auto and have already pulled engine and trans so as to prep for my sr that comes in 2 weeks. as you all know it had a single cam ka and was blown when i bought it. ok to my question... what parts of the ka harness can i use and have to use? lower harness.. starter,alt., etc... i was told i can use but what about the trans harness? im now assuming that i cant use the sr harness right? do i have to find a harness from a 89-90 5 speed? or 91-94 ka dohc harness? i am trying to make this swap as easy as possiable so who has what i need and how much? or if someone can lead me in the right direction that will be geat!!!

[Justin35ll]

I don't know if you can use your auto ka lower harness on your manual sr trans.

I used my 5 speed single cam lower harness on my sr trans and I just had to solder the speed sensor wires and reverse lights and that was it