Mywhoosh app and Garmin problem

I have Garmin 1040 solar and i m using the mywhoosh app. Cant find a way to prevent Garmin from controlling the smart trainer. I want only Mywhoos to be the controllable app. I disabled Bluetooth on Garmin, leaving only the ANT+connection,but Garmin still takes control. I just want to wiew data on the Garmin.Is there a solution to make this work. Thanks