I purchased an Raymarine S1 wheel pilot and am ready to install the 6002 control panel. Unfortunately, the only good spot to install it is right next to a stereo speaker (with a magnet). The installation guide says to keep it greater than 2.5 feet from a magnetic source. My question is how critical is that distance? Will the 6002 still function if it is about about 6" from the magnet? It seems to me that a magnetic field wouldn't have much effect on a control panel. Anyone have any input/experience on this?