I ran two wires, one for a low oil level and one for an alternator warning to the Digital Dash and connected the oil to IO1(pin 1), and the alternator to IO2 (pin 3). I have them both setup in the configuration as ALT & OIL and SW to ground since they both trigger on ground. When I go to try and make an LED on the Digital Dash to light up when they alert I have a spot for "symbol" or "gauge" or "switch", but I do not have one for LED. I setup symbols labeled "OIL" & "ALT", but how do I link those to symbols to the IO1 & IO2 to alert when they trigger?