how do I replace this, the wire is built into the speaker and runs into the unit.
Easy to replace. Just get a new dog. Small breed if it's a tweeter. Beagle sized for mid-range. And of course Lab or larger for that all important Woof-Woofer.
If you have enough wire, just twist it back together and cover the open wiring with electrical tape. If he took out a chunk of wire, just buy some more speaker wire and do t he same thing. The wires should be red and black, just connect the red to the red and the black to the black. It's a really quick and easy fix you can do yourself.