Hello. I have some GPS trackers installed on vehicles and have them reporting to a application that collects the data packets and stores them in a database (mysql). I've been doing some reading into adding this live GPS information to the arcGIS maps as a layer, but I am at a loss as to exactly how to do it (without buying more extensions). I could give the arcGIS maps access to the database, but I am trying to figure out as to what exactly this would entitle (writing a SQL script or web service maybe?). What would be the easiest way to get this information into my map?