I havne't used the Simrad EVO3, but for all Lowrance units that I have used, you should be able to see either "Lowrance" or the map name that you used during export as options under the map selection. You need to select the map source first, and then ensure that Shaded Relief is set to show. You won't be able to show an exported map over the top of any map card, so maybe this is where the issue lies? Perhaps someone with Simrad experience will be able to chip in with more specific info. Are you able to see vector maps that have been exported from ReefMaster?