I bought a used boat that has a Lowrance X85 on the front. I want to upgrade the fishfinder with a better color unit. Does anyone know what unit I can switch to that will let me use the exising Lowrance power and transducer cables? Will any Lowrance or Eagle unit let me do that? I really don't want to run new power and transducers cables. The transducer is thru hull not trolling motor mounted.