Carplounge RT4 V3 bait boat Selling my RT4 Autopilot V3 with Raymarine CHIRP Echo 3D Mapping Full Version. Features: Samsung tablet remote control underwater camera + case with display boat frame & transport bag 3 batteries + charger The boat has not been used for 2 years and is standing around unused. Light scratches on the front that can be polished out. Price is negotiable, but "What is the final price?" requests will be ignored.