Tube4slabs; You should be able to do this with a little careful soldering. It will be a little tricky but, get some heat-shrinkable tubing ( from radio shack or an electronics parts store), get a pack with several different sizes, according to the size of your wires. If you have a soldering iron and know how to solder get some very very small solder. If you've never soldered, find someone to help you that has experience. Now before you start to solder, you have to cut the all the tubing your going to need. Start with a piece big enough to cover the outside cable, slip this over one end of the transducer cable and up out of the way, make it long enough to cover the entire repair. Probably about 4 inches. Next you'll have to cut a piece big enough to cover all the little wires that you'll reconnect. Make this about three inches. This will take the place of the inner tubing that covers the wires now. Try and slip it up out of the way next to the first piece you've cut.Originally Posted by Tube4Slabs
Now if the first wire under the black outside cable is a braided mesh, this is a shield wire. Carefully strip back the black outer covering leaving about two inches of shield exposed, and be careful and try and not cut this shield up too bad. Slide the shield wire back over the outside black cable. The shield should expand when you slide it back. Do the same to the other end( transducer end) now you should have two cables with two inches of inner tubing exposed and wires in the middle. Cut about one inch off of each inner tube, don't cut the wires. Now you should have one inch of wires exposed to work with. I don't know how many wires you have, I'm guessing 4, but it doesn't matter. They should be color coded. Pick a color and cut 1/4 inch off of one side or the other. strip 1/4" off of each end and cut a piece of tubing 3/4 inch long. Use the smallest tubing that will fit over the wire. Slide it up over the long side and twist that color together and solder. Next cut 1/4 inch off of the opposite side of the next color your going to connect. This staggers the solder connections and makes less of a bulge. After you get all the wires reconnected, position the heat shrink to cover all the solder connection and use a heat gun to shrink the tubing. ( hair dryer usually will work, or a bick lighter). Next slip the three inch tubing over this group, it should cover the group and a little of the inner tubing on both ends. Shrink this tubing.. Now take one of the braid and pull it toward the middle till it's as small as possible. Another words put it back where it was originally, then pull the other end over the top. Over lap as much as you can..... Now if your pretty good at soldering you can try and solder these together, but it's not necessary, and it's dangerous, if you burn through .... so If it was me I'd just pull the last piece of heat shrink over the whole mess and shrink it. the pressure of the shrinking tuning will make enough contact with the two shields to do their job.
I've repaired 25+ wire cables this way, it takes a little patience and sometimes a third hand. Just don't get in a rush. and don't have your iron to hot. The quality of the insulation on the little wires will have a lot to do with how easy and how clean the job turns out. But I can't know that.
If the insulation melts as soon as you touch the wire with the iron, it'll be tricky. You'll just have to be quick.
Hope this helps... Had a dog chew one of mine in two once.. but it was just a piece of coaxial cable.
GOOD LUCK!!!