V1 (DO 1234902) was underway approaching the dock at Conch Harbor to fuel behind V2 (Canadian/DO 834740) tied to the dock.  V1 was using a wireless remote helm to control the throttle and steer.  V1 attempted to take the vessel out of forward gear to let it run. The wireless helm did not respond.  V1 closing on V2  then attempted to disengage the wireless helm to use the manual controls.  The helm did not respond.  V1 struck V2 bow to stern.  The persons on board V2 were able to avoid the impact of V1 by moving forward or off the vessel.  No injuries to report.
KEY WEST                      