You will need a combine kit it comes with all the wiring, flow sensors, moisture sensors, and all parts needed to make it work. They really have a nice kit it even includes the drill bits and hole saws it needed. I think they cost about $2,200

I guess you would also need a cable to hook the EZ-Guide 500 to the advantage I think they are about $40. Locate a Ag Leader Dealer near you.

http://agleader.com/sales.php?Page=master