Thanks Sam, but I'm not talking about the shell. It's the metal wrap that is around the 9 pin D sub connector itself. You know, the wrap with the metal ears that stick out the ends of the receptical and support the D sub when it is mounted, with, or without, the shell. That is the metal wrap that is a ferrous material. I was hoping for one made with an aluminum wrap.
I did get a response from one of the RV guys, who said that this small amount of stationary ferrous metal would not interfere with the magnetometer. Hope he's right!
Tom