Appreciate your checking me on this but in this case I'm OK. The magnetometer is actually all the way out on the end of the left wing tip. The box you see in the pics is the pitot heat controller. I mounted my pitot tube so that it is inboard of where the wing strut attaches to the wing rather than outboard as called out in the instructions. So my pitot location is even farther away from the wing tip and the magnetometer. Again I do appreciate you and anyone else checking me on this stuff. Far from an expert and have found over the years that I am a pro at dumbazz mistakes.
Gary