I finally had the electronics installed and took the boat out. The radio works great as does the Garmin 520s GPS unit. The only problem is I keep getting a NO TRANSDUCER/SONAR OFF message when trying to get depth info. The main menu wont even give me the SONAR option like the menu in the book. I hope it's something simple. I don't want to have the livewell removed again to rewire the transducer. I'm calling Garmin tech support today. Hopefully, it's something simple that I did, or didn't do... Any thoughts?