After much research over the winter I purchased a Humminbird Depth sounder/GPS Chart Plotter with down imaging. Beautiful unit. I have a 2010 2250 RCW and sadly the stock transducer cable is just about a foot short for where I want to mount it on the console (top left side). I had to purchase a 10 foot extension. So if you planning on buying a new sonar unit i highly reccomend this for function....but be ware the cable is a bit short for such a high end GPS/Sonar unit.