Solved! Go to Solution.
dojo.connect(featureLayer, "onLoad", function() { featureLayer.renderer.symbol.setColor(new dojo.Color([0, 0, 0, 0])); map.addLayer(featureLayer); });
dojo.connect(featureLayer, "onLoad", function() { featureLayer.renderer.symbol.setColor(new dojo.Color([0, 0, 0, 0])); map.addLayer(featureLayer); });