Well Flycaster, you were absolutely right about the transducer cable, must be a zip tie by the throttle so I cut the cable on the old one. Used a hanger and fed the new cable through with ease.

The terrova fortunately installed smoothly as planned.

Will put all the paneling back on tomorrow after work and the last switch will be the rear deck seat base that I'm switching to a 3/4". Ready to get her back out on Saturday!