Nothing really beats stepping into a nice, warm vehicle during the freezing cold winter months. And yet, for some, their factory Jeep heater just doesn’t cut through the winter chill like it once did. So, to keep that interior just the way you desire, an auxiliary set up such as Rampage’s Electric Back Seat Heater/Fan which works alongside your existing system, or Flex-a-lite's Mojave heater which pairs with your engine’s current heating architecture, are great products to accomplish that task.