The GPS and radar on my 1995 Sea Ray 370 were on the boat when we bought it 5 yrs ago and possbly much longer than that!! We keep the boat on the St Lawrence and travel with it a fair amount. The River has a high degree of difficulties when it comes to safe navigation, and we have been increasing the length of our trips annually. Last year going to Montreal from our home port on Wellesley Island. This year into the New Year Canal System where we ran out of the range of maybe the chip in our GPS? And relayed on good old fashion charts to finish the trip!! The screen on our GPS is very small and hard to see. I am looking for advice on the best bang for the buck on a new unit. We don’t really fish all that much, but at the same time bottom contour could possibly save a lot of heartache?? I’ve never really used our Radar (the screen seems really dark)and I wonder if it may be on its way out. Is it worth looking into a complet package?? Thanks in advance for any advice!