I recently installed new wiper motors, and I noticed the one at the helm window sends my compass spinning and kills my GPS signal. I assume it is the electric wiper motor's magnets doing this. I move my compass away from the motor and it normalizes. I move my GPS away from the motor and it gets back it's signal. My old wiper motors (cheap-o's that broke) were a different style and I didn't notice any trouble.
Here's my problem. I can't mount my wiper motor in a different spot. The frame around the window doesn't allow it (it's too narrow). And I have no where else to mount my electronics where I can see them. They must go on the dash right near the wiper motor. Is there a way to shield the interference or something? Any help appreciated.