I'm installing an Optima battery under the driver's seat. In theory, you could argue that with the proper isolation (not restarting relay vs. isolator debate here!!) the starter battery should be reserved only for starting, and the auxiliary battery powers everything else. 

For those of you who've done this before, what loads have you moved to the auxiliary battery, and what were the wiring tricks you employed?

thanks for any advice!!

Chris
'87 Westfalia