>Ok, here is the info you seek. (including the year of vehicle in
>question may help in getting answers sooner)
>
>You don't need to remove the fuse box, just the cover so you can get to
>fuse #3.
>
>Fuse #3 always has 12 volts at the top leg and then the fuse connects it
>to the bottom leg.
>
>1. REMOVE fuse #3.
>2. Put a male .250 spade connector on the end of the wire coming from
>your aux batt. (use ~12 gauge wire and an inline fuse in that wire near
>the aux batt)

Want to emphasize the importance of placing the new fuse in the wire
from the aux battery *at the aux battery* NOT at the fuse panel. If
you experience a short in this new wire on the way to the fuse box,
you want a fuse to pop. That is only possible if it is placed right
at the battery.

Dave (who has great respect for electron flow)
--
Dave Carpenter

"Any sufficiently advanced technology is indistinguishable from
magic." -- Arthur C. Clarke