1991-1993 Wrangler YJ

I've got an issue with my 91 yj, I've had
questions before but this is a techy one, I
recently bought a parts jeep bit it's a '93,
most parts will overchange (trans, engine,
axles etc.) But one issue we're having is
the gauge cluster and figuring out which
wires go to which gauges, because the
colors are a little different, the only
difference is instead of the clock option
in the '93 it has a light that comes on
when the 4x4 is on, and it's almost
IMPOSSIBLE to find any diagrams clear
enough to figure this out so if someone
out there can help with this I'd really love
to hear some advice!!!