If you all remember way back, I was lulled into the idea a Jeep dealer or Jeep itself could upgrade my QT1 to QT2. I was collecting all the parts to do so. even to the point of swapping out the mid underframe wiring harness.
Of course the Jeep Dealer or Jeep didn't happen. And that why I'm here.
Moving forward. with that new wiring harness, there are connections under my rear seat for the FDCM and under the Jeep the connection for the Transfercase Motor. Yes you guessed it, I spliced into the wiring harness under my rear seat. This gives me all connections inside the jeep.
However, if someone else were to do this, there is a large grommet under that same area under the rear seat, wires can be brought up through that grommet and sealed. You could find a junk yard WK or XK with QT2 or QD2 and get the Transfercase motor connection from one of them. Or worst case buy a repair splice-in connector from Jeep. Part Number #68040504AA