You need to hot wire the intercooler because the chances of it switching on are slim to none. (correct me if im wrong) but the intercooler from what ive red comes on at a whopping 220 degrees. I live in phx arizona and i did this within the first week of my owning a Ty to reduce some heat soak. Search the forums also there is a step by step with a diagram of exactly how and where to ground the wire.