RB30 tacho wire

[okel91]

Hi guys, I did an rb25/30 swap on my rb30e GQ Patrol a while ago and never hooked up the tacho. I have seen on the forums I am looking for a yellow and black wire. My ECU and rb25 trigger wire is in the passenger footwell, I am hoping I can tap into the tacho gauge wire without having to pull the cluster out and run another wire. Does anyone know where this wire can be located on the body loom, I cannot find it any manual?