An assembly interfaceable with a machine control module through a controller area network having a controller area network bus on a power machine, the machine control module configured to operate drive components that drive and steer the power machine and hydraulics that lift and tilt an implement attached to the power machine in response to operating commands characterized in that the assembly comprises: a portable "off-board" control unit including: a housing including a handle, the housing having a control panel including a right input device and a left input device spaced from the right input device wherein the right and left input devices (250, 252) are configured to activate operating commands for operating the hydraulics of the power machine to lift or tilt an implement connected to a lift arm of the power machine and for operating the drive components to drive and steer the power machine; and a transmitter mounted in the housing and configured to remotely transmit control signals responsive to said operating commands to a receiver; an "on-board" receiver unit including the receiver, which is capable of receiving the control signals, the "on-board" receiver unit being removably coupled to the power machine and connectable to the CAN bus on the power machine via an "off board" CAN controls module such that, when the receiver unit is connected to the CAN bus, the receiver unit is configured to provide said control signals via the CAN bus to the machine control module; and a controls box mountable to the power machine and coupled to the "on-board" receiver unit, the controls box including a switch configured to activate and deactivate the receiver of the "on-board" receiver unit, wherein, when activated, the receiver is capable of receiving the control signals from the "off-board" control unit and when deactivated, the receiver is not capable of receiving the control signals from the "off-board" control unit. a portable "off-board" control unit including: a housing including a handle, the housing having a control panel including a right input device and a left input device spaced from the right input device wherein the right and left input devices (250, 252) are configured to activate operating commands for operating the hydraulics of the power machine to lift or tilt an implement connected to a lift arm of the power machine and for operating the drive components to drive and steer the power machine; and a transmitter mounted in the housing and configured to remotely transmit control signals responsive to said operating commands to a receiver; a housing including a handle, the housing having a control panel including a right input device and a left input device spaced from the right input device wherein the right and left input devices (250, 252) are configured to activate operating commands for operating the hydraulics of the power machine to lift or tilt an implement connected to a lift arm of the power machine and for operating the drive components to drive and steer the power machine; and a transmitter mounted in the housing and configured to remotely transmit control signals responsive to said operating commands to a receiver; an "on-board" receiver unit including the receiver, which is capable of receiving the control signals, the "on-board" receiver unit being removably coupled to the power machine and connectable to the CAN bus on the power machine via an "off board" CAN controls module such that, when the receiver unit is connected to the CAN bus, the receiver unit is configured to provide said control signals via the CAN bus to the machine control module; and a controls box mountable to the power machine and coupled to the "on-board" receiver unit, the controls box including a switch configured to activate and deactivate the receiver of the "on-board" receiver unit, wherein, when activated, the receiver is capable of receiving the control signals from the "off-board" control unit and when deactivated, the receiver is not capable of receiving the control signals from the "off-board" control unit.