How about this type of connector with a cigarette lighter outlet on the other end, for an accesory in a tank bag, GPS, mp3 etc.....?
Anyone ? Anyone?
I found this:

At Eastern Beaver
http://www.easternbeaver.com/Main/Elec__Products/Connectors/connectors.html. He's in Japan and, as I remember, low dollar orders have a crazy-high shipping cost. He's got lots of cool stuff that I can tell myself I'll use someday. I put together an order this spring including an SAE to lighter cable, an SAE "Y" cable, and several SAE extension cables that I then cut in half to install on the bikes. (I also picked a few SAE caps but I didn't see CB's thread until after he was taken care of.)
A new Ace hardware opened near me a while back and they had a full Battery Tender display that had all sorts of SAE cables.
When I was looking for SAE connectors, Radio Shack was less than helpful. But I showed them, I bought AAA batteries and gave them the wrong zip code.