This is my first time setup on rover.  I am using APM 2.5 with power module, latest rover firmware, latest MP, radio has been calibrated, all flight modes set to manual, APM red 'a' LED is on, blue 'c' LED is on, 'b' LED is off.

MP screen responds to rover manipulations.  

Verified Rx output.  Tried with and without main battery power.  Cannot get any response to right Tx stick.

Any trouble shooting suggestions would be appreciated.

Thanks