What do you need an AC for anyway? I have a Jeep with a soft top and it has been broken into a few times, I got a radio with a removable face, that is the only thing of value in there. Otherwise, I keep nothing in there. If you are concerned about security look into an "auto taser" These devices are like "the Club" but they have a remote control and when they are activated they pulse electicity that will jump about 8" to shock the hell out of any intruder. They rock. You might also look into a security device that is commonly known as a well trained, angry dog. Keep a well trained angry dog in your jeep and it will keep the bad guys away. Really any biting animal will work, but dogs are easy to train. Lions and tigers are more lethal, but hard to keep in the jeep.