Fuel gauge wiring question

The path for the OEM wire was from tank, up through trunk floor and into rear harness, up to left front kick panel where that connector mated the rear harness and inst. panel harness. From there the wire went up to the cluster PC board connector and to one stud of the gauge. Through the gauge, to the IVR, which feeds both temp and fuel, and oil if it's a Ralleye cluster, then from the IVR to switched 12V from the key. As someone mentioned, go to MyMopar.com, get your self a factory service manual. You may have to settle for Dodge vs Plymouth, etc. Also while there go to the wiring section and download the 3rd party diagram, which leaves out some details, connectors, etc, but can be easier to follow.