I need a replacement Lowrance 3500 Depth gauge (digital reeadout). Mine is losing the readout on the the number from 10' and up. I know they are discontinued, but I don't want to try to snake a new cable from the flybridge to the bilge and certainly don't want to cut a hole for a new transducer. The old guage uses a puck that reads through the bottom of the hull.
Anyone have any idea where there might be a gauge available, with or without transducer? Any help is greatly appreciated.