The right side factory negative cable has a small wire that goes to a couple of gray connectors. I have been unable to source those connectors. You will need to cut the wires going to these connectors and splice them to the new wires.
Our cable kit is shipped with the wires and splices so you can make the connection. A standard hand-tool wire crimper should work fine on the 8 gauge wire we send.
Here is a schematic view of the cable:
For reference, here is a picture of the actual Dodge Ram battery cable:
Here is a detail of the connector on the Dodge Ram battery cable:
Here is what it looks like with connections to new wire completed.