December 5, 20196 yr Hi there, Please help. I got the new Carenado C421 from Alabeo yesterday and followed the instructions to install it into the plane. I can see the GTN750 inside the airplane but it won't power on. I cannot get it to work. Please advise. I hear that I might need the Garmin Trainer as well. I downloaded that last night. However, it's a trial version. Do I have to pay for this as well? I'm super confused how this all works together and needed parts.
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