What was Airstream thinking?

I am reviving this old thread with some news that will make Gdetrailer happy. I have totally removed that 3 outlet 12v receptacle (including the green wire). It is no longer needed. I have added a pair of 12v outlets in other places, using 12v wires that Airstream had already run. I added a 12v outlet/5v USB outlet to the plywood forming the bed frame. Airstream had left a pair of 12v wires just hanging loose by the bed, so I used them. I also added a 12v outlet under the dinette table, tying into the hot and ground wires that power the sub-woofer. Those two outlets are sufficient for my needs without the 3 outlet port I had hidden in my closet. I did use that outlet, though, when it was the only 12v outlet in the trailer.