I have a Minn Kota trolling motor (Co-Pilot)

How in the heck are you suppose to put a hockey puck on the bottom of one of these?
I cannot figure out how to run the wire from the transducer the right way...

You cant tape it except on the top and the bottom because the shaft slides thru the transmission of the motor and that does not seem like enough to keep it out of the way when putting it in the water or taking it out.....

Thanks in advance