According to what Greg indicated the instructions say to wrap the cable on the TM side of the gold plug seen in your pic...(this is the actual US2 Xducer cable coming from the foot of the Terrova, up thru the inside of the Terrova, and then to the depth finder)..

I would ...::
*unplug the gold connector in your pic...
*pull approximately 24" of the cable (from the TM side) thru the ferrite ring...
*start wrapping...
*reconnect the gold plug

Is there going to be enough cable for you to do this and the Terrova still deploy and stow properly..??

Rickie