My new Tracker V-18 All Fish comes with a Lowrance x47 on the console. I want to add a finder at the bow but it seems that Lowrance doesn't sell the x47 model. I can't find it anywhere so I'm guessing its reserved as standard equipment on new boats. Most new boats in the range seem to have that model. So, my question is, can I hook up a similar model in line with the x47, using the same transducer, etc. Even better, anyone know where to get an x47 without buying another boat. I'm obviously new to all this...any help would be greatly appreciated.