Swapped in a t56 magnum into my 90gt. Was told that I only needed to splice in a new pigtail into the 2 pin connector coming from the chassis to the connector on the passenger side towards the front of the t56. Speedo cruise sensor is hooked up and the 4 pin connector from the chassis I left unhooked (told it wasn't needed for anything). Car won't turn over and the reverse lights don't work. Had no problems with my old t5. Any help would be appreciated.

 

Turns out I have 4.7 v coming from that 2 pin reverse light connector that's coming from the chassis. Why is this. I have 11.8 v coming from the battery.

 

That is when I have the key switched on.

 

Started the engine by jumping the solenoid.