Does anybody have any idea if the cabin harness(that runs from interior fuse box to passenger headlight) from the 2 door EX is compatible in a 3 door DX chassis? My DX harness is hacked to **** and it unusable and they are extremely hard to find in good condition but I have a chance to get a used EX harness instead.

 

You will need to run EX door harnesses. I also seem to recall having to repin some stuff in to get the tail lights to work. It also matters if it came from an automatic or a 5 speed. If you get the EX harness and can't use it PM me, I might be interested in buying it.

 

It came out of a 5 speed car and I am not going to be using door harness, manual everything for me. Ill let you know if it doesn't work for me.

 

You still need to use them, or ones from an Si hatch, the DX ones are two pin, the others are something like a 6 or 8 pin plug. You don't need to add the power stuff, but you do need the door harnesses.

 

Thanks for the info. The harness i ordered came with all interior wiring.

 

Just ran into this same issue. That harness specifically is pinned the exact same way for hatch and ex the ex harness however will be missing the wiring for the rear wiper and squirted thing. I solder maybe 5 wires and swapped the plug from the hatch harness to the ex harness. The floor harness will be missing these as well. Where the pin outs change position is at the big grey connector above the driver rear wheel. Almost everything is different. But again, i compared the entire dash harness and it was pinned just like the hatch was.

I know you are parting out this build but hopefully it helps someone else.