I am trying to dial in my fish finder on my Garmin 2006c I only see a few line that I think are fish. I have changed setting back to default and tweaked them to where I see noise and no change. Could someone chime in to tell me there setting on the fishfinder and I will try that next. I change it to the fish symbol and I see it but it does not tell me much, I would like to see the srch but I know I will only get that if the fish swims straight thru the cone. Thanks for any help you can provide me on this topic.