Protecting sonar cables or any exposed wiring cable or harness....

[Cane Pole]

One of the easiest ways to protect your sonar cable is to use spiral wrap tubing. This tubing is cheap and you can get it at Wal Mart or any auto parts store. I replace mine every year (and also the tie wraps). This solves any deterioration problem. Just part of maintenance.

[Barnacle Bill]

I use it on my trailer lights pigtail too. Good stuff.

[SkyChimp]

On top of that, it just looks cool. I like the split-tube stuff

[willsjwills]

good idea, CP. We use miles of it daily in our boats.