Tail Light Switch problems of the 2011 Dodge Journey

I bought it on October 2011 at the south of florida , since then I had keeping and driving the car at the same location, never tried drive in low temperatures. But, in June 2016 I moved to region where the weather is between 20f or -7c during winter. Then the tail light on the lift stopped working, but it was not burned and no problem with the fuses the battery was dying frequently. This winter the rear wiper stopped working too. Now it was time to discover what's going on . Thus, I found broken wires in the sleeve between body and lift gate, where the wires need be flexible. I can confirm and concluding: the wires installed at the car do not support temperatures bellow 20f or -7c , in these condition the wires crack and broke and causing short-circuit. There are defective wires installed in this make car causing lost of power, short-circuit and letting the car instable. My concern is the others doors may have same defective wires. And it's happenig in any situation, stationary, in motion, on a city street or a highway, turning, sincerely.