LocDown is right in that all you need is one of the Ethernet Connection cables to connect both of these units together. Problem is that there are various lengths so you will have to measure the travel route that the cable will take to determine which one you need. The part number for this cable will be AS-EC-XXE where the “XX” is replaced by the length. Cable lengths are 2, 10, 15, 20 and 30 feet long.
You will need a second map card as the mapping data cannot be shared over the Ethernet connection.