I normally listen the prop sounds of attacking surface ships and the bearing for timing maneuvers and course changes. BUt currently it's almost impossible, because the sounds are biased and are coming from a 180 degree wrong direction i.e. bow is aft and left is right and vice versa. It is really confusing
Using thermal layers makes the evasing easy. I recommend the "Thermalizer" mod (or something like that) for some randomness in the layer depth (don't forget to kill the announcement sound until you have a gadget to sense those thermal layers.