It's nice to see a picture of the shunt/battery in a vintage trailer.
I finally got the ground wiring for the 95 Sovereign
figured out today. The Sovereign has two batteries, but no fuses or shunts in the negative leads.
The negative leads from the two batteries apparently join in the 12V
distribution box under the front window. (see pictures)
The grounds are all at the lower left. In order to insert the shunt, I removed
the two black wires going left and right at the top of the ground block.
I removed these two black wires from the ground block and attached them to one side of the shunt. Next I ran a black wire from the other side of the shunt to the ground block.
The ammeter/wattmeter works fine. I'll figure out how to route wires and make things pretty next weekend and then post some pictures.
If anyone wants to put in an ammeter/watt meter/voltmeter, I got mine on ebay.
Digital DC Boat Golf Solar Power Watt Volt Amp Meter - eBay (item 350239500736 end time Aug-19-09 19:58:57 PDT)