Sorry for the repeat post but got no answers at all to the first post.
In the process of going to a larger aux battery (under the rear seat) I'm
also planning on going to a Surepower 1315 separator rather than the current
relay setup.  Now that I'm looking at the rats nest of wiring that already
exists in the aux battery box I'm confused.  Picture here:
http://picasaweb.google.com/starwagen/AuxBatteryCompartment/photo#5081175084108326066
The two red wires that disappear to the lower left connect to what I assume
is a relay, mounted in the 'hidden' space with two bolts that go through the
body into the wheel well, nuts in the wheel well.
If the gurus can take a look at the picture and tell me a little bit about
what I'm looking at I'd really appreciate it. Like what is the little square
silver box at the top of the picture?  Seat belt buzzer? Or what?  And if
the relay (that is hidden) is the 'Aux Battery Relay' I have to assume that
it grounds through the case (only two wires to it).
Any definitions would help so I can sort these wires out .
Thanks in advance.