Slipped two lengths of wire down through the rubber accordion boot (taped them to a flexible yet stiff picture rail wire and pushed them through) and using butt connectors crimped the 2 individual new wires to bridge the broken wires.
To sum up 4 butt connectors and about a foot of replacement wire and my two broken wires are now joined. There is no need to cut the accordion boot.
Now my rear lift gate locks remotely and my high mount brake light works. Radio Shack can be a convenient source for butt connectors and light gauge wire.