gfy_paddler wrote on May 24^th, 2011 at 1:12pm:

Ooops..   I spliced my transducer wire last night and didn't mind the shielding at all.  I just linked the wires back up with electrical tape, and then a gorilla tape second layer on the wire.  I hooked it up and everything looked to be working all right.  Hope so, anyway :-/

I'd seriously consider soldering the wires. Sooner or later the odds are your tape connections will get pulled on and that could cause problems in the field.
A pencil solder gun from Radio Shack is cheap and it's easy enough to do if your not familiar with soldering. Just tin the two ends first and a light touch to blend together. If done properly a solder joint is the same as the original wire.