Have a few questions. 1-can I network my 798hdsi to the helix 9di unit.if so what would I need. 2-going to put helix 9di on bow to my power drive v2 trolling motor what is the best transducer to us. 3-can I have both units on the same time or should I turn off one unit.will they still share waypoints if one units off. 4-will I get any interference with the unit hooked to power drive trollingmotor.thanks guy I know it's a lot to ask but I've never run 2 units and network units together.what to find out everything i need before I order.thank I might call Brian at bbgmarina and order from him