Hi Tim,

I use a Blue Sea Systems SI 7610 Automatic Charging Relay to control the
batteries in my '85 Zetec powered Westy.
http://bluesea.com/category/2/productline/overview/387

I like the Blue Seas ACR because it can handle 120A (compared to 100A for
the SurePower 1315) and seems to be built a bit more robust.  Blue Sea
Systems products are designed for boats, so they tend to be "over-designed"
since you can't just call AAA when you are at sea...

Much like the Subie, the Zetec doesn't use the blue field wire to control
the fridge relay.  Before I pulled my fridge a couple years ago to gain more
storage space I controlled it using a standard 40A SPST relay triggered by
the "key in" circuit.  This won't keep you from killing the battery if you
leave the keys in the ignition, but why would you do that anyway?

There are a few shots of my setup posted on www.thesamba.com
<http://www.thesamba.com/> , just search the gallery for submitter
"thatvwbusguy".

Jay Brown

'85 Zetec Westfalia

'87 Zetec Wolfsburg