My old boat is rigged up with older Humminbird fish finders. I have a couple of old 899ci HD SI, I think. Two SD card slots. I have Autochart Pro and I have made a map of the 175 acre lake I fish. There are no map chips for this lake, Lakemaster, etc. It's time for a new troller and I want to be able to network with my fish finder and map program. The older i-Pilot link units will wire up with my fish finder using the dongles, ethernet cables and switches. I have all of that stuff already. The new MK Quest stuff is all Bluetooth and there is also a network plug on the motor head. All the new motors have the same plug on them. The guys at Cabela's couldn't tell me if they could be used together with my legacy 800 series units. I like the new brushless trollers, but I don't want to buy one unless I can network with my older stuff. Do I need to find an older i-Pilot link troller to be able to use my Zero Lines card and map? I want to be able to follow the 20 ft A-C contour around the lake without having to drive the motor.