Thanks. I figured it out. Red is the positive line and White is the negative line from the Pod. Well, I didn't blow anything up when I hooked it up and things seem to be charging and running with both batteries in place pretty smoothly.

Oh, and I read in the fuse box inside the Pod that if you reverse polarity, you will blow the main fuse. Either way, it was a miracle that I was able to have three lights on inside without it draining the battery to nothing within an hour. That is what was happening to me with the interstate battery that was no doubt the original from the previous Pod owner. I'm going to take good care of these two batteries that I just added (i.e. battery tenders for both this winter). I'm guessing that since the Pod sat on the dealer's lot all winter, it was probably never plugged in to charge, thus the battery was dead on arrival... or the previous owners drained that battery to zero continually. Either way, I've already noticed a huge difference now that I've coupled two batteries together.

I plan on boondocking a lot, so the extra battery is necessary. So was the purchase of that Yamaha 2000 inverter genny. Eventually, I am going to RV or should I say Pod fulltime. Yes, you heard me... I'm planning on becoming a traveling scholar. That is to say, I plan on traveling the country and visiting or studying at numerous universities across the country. I'm not married anymore, so the sky is the limit.
By the way, I still haven't figured out how to get my TV antenna working. I saw where the button was located and pressed the button and the light turned green, but when I turn on the TV to the TV setting, I just get "no signal" on the screen. Maybe someone can shed some light on this for me.