Sure thing. It's actually easy on this one.
This is the switch mounted on the Passenger side inner fender. One wire to the starter, one wire to each battery
wire to driver's side (in front of radiator) and negative cable (not connected to anything, just sitting there.)
Driver's side didn't have a negative cable (truck didn't come with batteries) but I assume that the stock ones on this side would be fine.
The switch has the options of NONE, 1, 2, BOTH for the batteries.