Hi,

You may remember my 87 Starcraft pop-up I've been tweaking on over the
last couple weekends getting ready for our Tahoe trip this upcoming
weekend.  Got the brakes working, etc, etc.

Today, I finally had the opportunity to see how things worked out with
the fridge.  What I found was kinda interesting.

There were a pair of wires that were unaccounted for at the tongue, a
white one connected to ground right there on the tongue, and another one
that is white with a green stripe.  Wasn't sure where this pair goes.
The green stripe wire has a male quick-connect pop-in connector that
obviously was meant to go into the female connector which was wired into
the junction that heads to the tow vehicle.  This has a 12V connection
from the tow vehicle.

When I looked closer at the wiring in the fridge compartment on the
outside, I noticed that familiar pair of wires.  So I connected that
quick-connect at the tongue, and suddenly had power to the fridge.

So to sum up, the fridge is wired directly to the tow vehicle on it's
own line, and doesn't use the 12V line that goes to the trailer battery.
 In fact, the fridge isn't wired into the trailer's converter, battery
or any of the trailer wiring.  It's got its own relationship with the
tow vehicle.

Measurements:  With the engine running, the truck battery shows 13.84V
without the fridge, 13.75 with the fridge running.

With the fridge and tow vehicle engine running, I get 12.95V at the
tongue, and 11.90 at the fridge, just before the fridge switch.  That
means a 1.05V drop in the line from the tongue to the fridge, in the
trailer wiring.  Is this still acceptable?

Any other measurements I should check?

BTW, the voltage to the trailer battery is good when connected to the
tow vehicle and the engine running.  I think I'm good there.

Thanks,
-Rob