Ok So I have a little bit of a bitch but honestly I'm sure that it's 95% on me. I bought used a 788Ci HD for my Console and a 588 ci HD fortransducer the front to work off my trolling motor build in Minkota transducer. To begin with I can't seem to get the GPS going on either unit at all, do I need to set it up first. Next my console unit will not shown depth when I'm running. The units transducer is outside on the back of the boat. And lastly I bought this Humminbird Lakemaster software and put it in the unit and nothing. How can I get myself set and running? Any help or tips ?