SC986:
I think the OBC system is definitely worth activating. If for nothing else, just to have the outside temperature display. Apparently it can be controlled with the 4th stalk, or another switch. There is a current thread in the "General Discussions" forum entitled "OBC Hack Help" with some good information. I'm sure there are many more threads detailing the hack. I've never done it, but will be glad to help.
Y2BOX:
Thanks very much!
ddb