> while in my parts van there is a relay under the drivers
> seat, where the second battery would go (hookup not supplied
> in my parts van). My manual doesn't show this relay, and I'm
> wondering what purpose it serves.

That's probably for the fridge - it stops it being powered on 12V when the
engine's not running.  I now use that relay to charge my second battery :o)

toodle pip,
--
       Dug Smith         | What is the meaning of life?
(mailto:dug@dugbert.com) |  - All evidence to date
(http://www.dugbert.com) |    suggests it's chocolate.