Please make sure your wiring harness has both positive and negative wires from the
controller to the motor(s). You can not ground the negative motor lead to the truck
chassis and expect the controller to work properly. If your harness does not connect
to the negative motor lead we recommend you install a "Rhino wiring harness
system to make the system operate correctly.

If your system is driven by a wound field motor please call Technical Support at
800-709-4434 before making your purchase.

If you don't have a two stage, slide-in, poly hopper spreader or single/two stage tailgate
spreader and you need a controller please see the Compatability Chart or call Technical
Support at 800-709-4434 to match our controller to your spreading system.